TechNucleus

TABLES:

1) Table name - programmer

name not null varchar2(8) name
dob not null date date of birth
doj not null date date of joining
sex not null varchar2(1) male or female
prof1 varchar2(8) known language 1
prof2 varchar2(8) known language 2
salary not null number(4) salary



Entry eg:
somdutt 21-apr-66 21-apr-92 m pascal basic 3200


2) Table name - software

name not null varchar2(8) name
title not null varchar2(20) developed project name
dev_in not null varchar2(8) language developed
scost number(7,2) software cost
dcost number(5) development cost
sold number(3) number of software sold


Entry eg:
somdutt parachutes basic 399.95 6000 43

3) Table name - studies

name not null varchar2(8) name
splace not null varchar2(9) studies place
course not null varchar2(5) course studied
ccost not null number(5) course cost

Entry example:
somdutt sabhari pgdca 4500
devdutt bdps dcs 5000

QUERIES - I


1) Find out the SELLING COST AVERAGE for the packages developed in PASCAL?
2) Display the names and ages of all programmers.
3) Display the names and ages of all the programmers
4) What is the highest numbers of copies sold by a package?
5) Display the names and date of birth of all the programmer born in JANUARY.
6) Display lowest course fee.
7) How many programmer has done PGDCA course.
8) How much revenue has been earned through sales of packages in C.
9) Display the details of software developed by Ramesh?
10) How many programmers studied at SABHARI.
11) Display the details of PACKAGES whose sales crossed the 20000 mark.
12) Find out the number of copies which should be sold in order to recover the development cost of each package.
13) What is the price of the costliest software developed in BASIC?
14) Display the details of packages for which development cost has been recovered.
15) How many packages were developed in dbase?
16) How many programmers studies at paragathi?
17) How many programmers paid 5000 to 10000 for their course?
18) What is the average course fee?
19) Display the details of programmers knowing c?
20) How many programmers know either Cobol or Pascal?
21) How many programmers don't know Pascal & C?
22) How old is the oldest male programmers?
23) What is the average age of female programmers?
24) Calculate the experience in years for each programmers and display along with the names in descending order?
25) Who are the programmers who celebrate their birthday during the current month?
26) How many female programmers are there?
27) What are the languages known by the male programmers?
28) What is the Average salary?
29) How many people draw 2000 to 4000?
30) Display the details of those who don't know Clipper, Cobol or Pascal?
31) How many Female programmers knowing C are above 24 years of age?
32) Who are the programmers who will be celebrating their Birthday within a week?
33 Display the details of those with less than a year's experience?
34 Display the details of those who will be completing 2 years of service this year?
35 Calculate the amount to be recovered for those packages whose development cost has not been recovered?
36)ist the packages which have not been sold so far?
37) Find out the cost of the software developed by Mary?
38) Display the institutes names from the studies table without duplicates?
39) How many different courses are mentioned in the studies table?
40) Display the names of the programmers whose names contain 2 occurrences of the letter A?
41) Display the names of programmers whose names contain unto 5 characters?
42) How many female programmers knowing COBOL have more than 2 years experience?
43) What is the length of the shortest name in the programmer table?
44) What is the average development cost of a package developed in COBOL?
45) Display the name,sex,dob(DD/MM/YY format), doj for all the programmers without using conversion function?
46) Who are the programmers who were born on the last day of the month?
47) What is the amount paid in salaries of the male programmers who do not know Cobol?
48) Display the title, scost, dcost and difference between scost and dcost in descending order of difference?
49) Display the name, dob, doj of those month of birth and month of joining are same?
50) Display the names of the packages whose names contain more than 1 word?


QUERIES - II


1) Display THE NUMBER OF packages developed in EACH language.
2) Display THE NUMBER OF packages developed by EACH person.
3) Display THE NUMBER OF male and female programmer.
4) Display THE COSTLIEST packages and HIGEST selling developed in EACH language.
5) Display THE NUMBER OF people BORN in EACH YEAR.
6) Display THE NUMBER OF people JOINED in EACH YEAR.
7) Display THE NUMBER OF people BORN in EACH MONTH.
8) Display THE NUMBER OF people JOINED in EACH MONTH.
9) Display the language wise COUNTS of prof1.
10) Display the language wise COUNTS of prof2.
11) Display THE NUMBER OF people in EACH salary group.
12) Display THE NUMBER OF people who studied in EACH institute.
13) Display THE NUMBER OF people who studied in EACH course.
14) Display the TOTAL development COST of the packages developed in EACH language.
15) Display the selling cost of the package developed in EACH language.
16) Display the cost of the package developed by EACH programmer.
17) Display the sales values of the package developed in EACH programmer.
18) Display the NUMBER of packages developed by EACH programmer.
19) Display the sales COST of packages developed by EACH programmer language wise.
20) Display EACH programmers name, costliest package and cheapest packages developed by Him/Her.
21) Display EACH language name with AVERAGE development cost, AVERAGE cost, selling cost and AVERAGE price per copy.
22) Display EACH institute name with NUMBER of courses, AVERAGE cost per course.
23) Display EACH institute name with NUMBER of students.
24) Display names of male and female programmers.
25) Display the programmer's name and their packages.
26) Display the NUMBER of packages in EACH language.
27) Display the NUMBER of packages in EACH language for which development cost is less than 1000.
28) Display the AVERAGE difference BETWEEN scost and dcost for EACH language.
29) Display the TOTAL scost, dcsot and amount TOBE recovered for EACH programmer for whose dcost HAS NOT YET BEEN recovered.
30) Display highest, lowest and average salaries for THOSE earning MORE than 2000.


QUERIES - III


1) Who is the highest paid C programmer?
2) Who is the highest paid female cobol programmer?
3) Display the name of the HIGEST paid programmer for EACH language (prof1)
4) Who is the LEAST experienced programmer?
5) Who is the MOST experienced programmer?
6) Which language is known by ONLY ONE programmer?
7) Who is the YONGEST programmer knowing DBASE?
8) Which institute has MOST NUMBER of students?
9) Who is the above programmer?
10) Which female programmer earns MORE than 3000/- but DOES NOT know C, C++, Oracle or Dbase?
11) Which is the COSTLIEST course?
12) Which course has been done by MOST of the students?
13) Display name of the institute and course Which has below AVERAGE course fee?
14) Which institute conducts COSTLIEST course?
15) Which course has below AVERAGE number of students?
16) Which institute conducts the above course?
17) Display names of the course WHOSE fees are within 1000(+ or -) of the AVERAGE fee.
18) Which package has the HIGEST development cost?
19) Which package has the LOWEST selling cost?
20) Who developed the package, which has sold the LEAST number of copies?
21) Which language was used to develop the package WHICH has the HIGEST sales amount?
22) How many copies of the package that has the LEAST DIFFRENCE between development and selling cost were sold?
23) Which is the COSTLIEAST package developed in PASCAL?
24) Which language was used to develop the MOST NUMBER of package?
25) Which programmer has developed the HIGEST NUMBER of package?
26) Who is the author of the COSTLIEST package?
27) Display names of packages WHICH have been sold LESS THAN the AVERAGE number of copies?
28) Who are the female programmers earning MORE than the HIGEST paid male programmers?
29) Which language has been stated as prof1 by MOST of the programmers?
30) Who are the authors of packages, WHICH have recovered MORE THAN double the development cost?
31) Display programmer names and CHEAPEST package developed by them in EACH language?
32) Who is the YOUNGEST male programmer born in 1965?
33) Display language used by EACH programmer to develop the HIGEST selling and LOWEST selling package.
34) Who is the OLDEST female programmer WHO joined in 1992
35) In WHICH year where the MOST NUMBER of programmer born?
36) In WHICH month did MOST NUMBRER of programmer join?
37) In WHICH language are MOST of the programmer's proficient?
38) Who are the male programmers earning BELOW the AVERAGE salary of female programmers?


QUERY - IV

1) Display the details of THOSE WHO are drawing the same salary.
2) Display the details of software developed by male programmers earing MORE than 3000.
3) Display details of packages developed in PASCAL by female programmers.
4) Display the details of these programmer WHO joined BEFORE 1990.
5)Display details of software developed in C by female programmers of PRAGATHI.
6) Display NUMBER of packages NUMBER of copies sold and sales value of EACH programmer Institute-wise.
7) Display details of software developed in DBASE by male programmers WHO belong to the institute on which MOST NUMBER OF programmers studies.
8) Display the details of the software that was developed by male programmers born BEFORE 1965 and female programmers born AFTER 1975.
9) Display the details of the software that was developed in the language that is NOT the programmers first proficiency.
10) Display details of software that was developed in the language which is NITHER first NOR second proficiency of the programmer.
11) Display details of software developed by male students of SABHARI.
12) Display the names of programmers WHO HAVE NOT developed any package.
13) What is the total cost of the software developed by the programmers by APPLE?
14) Who are the programmers WHO JOINED in the same day?
15) Who are the programmers WHO HAVE THE SAME PROF2?
16) Display the total sales values of software, institutes-wise.
17) In which institutes did the person who developed the COSTLIEST package study?
18) Which language listed in prof1 and prof2 HAS NOT BEEN used to develop any package?
19) How much does the person WHO developed the HIGHEST selling package earn and WHAT course did he/she undergo?
20) How many months will it take for each programmer to recover the cost of the course underwent?
21) Which is the COSTLIEST package developed by a person with under 3 years expenence?
22) What is the AVERAGE salary for those WHOSE software's sales value is more than 50,000?
23) How many packages were developed by the students WHO studied in the institute that Charge the LOWEST course fee?
24) How many packages were developed by the person WHO developed the CHEAPEST package. Where did he\she study?
25) How many packages were developed by female programmers earning MORE than the HIGHEST paid male programmer?
26) How many packages were developed by the MOST experienced programmers from BDPS.
27) List the programmers (from software table) and institutes they studied, including those WHO DIDN'T develop any package.
28) List each profit with the number of programmers having that prof1 and the number of packages developed in that prof1.
29) List programmer names (from programmer table) and number of packages EACH developed.
30) List all the details of programmers who has done a course at S.S.I.L.

QUERIES - I


1) Find out the SELLING COST AVERAGE for the packages developed in PASCAL?

SELECT AVG(SCOST)
FROM SOFTWARE
WHERE DEV_IN LIKE 'PASCAL'


Output:
AVG(SCOST)
----------
2362.48

2) Display the names and ages of all programmers.

SELECT NAME AS NAME,FLOOR((SYSDATE-DOB)/365) AS AGE
FROM PROGRAMMER

OR

SELECT 100 + MONTHS_BETWEEN(SYSDATE,DOB)/12 FROM PROGRAMMER;


Output:
NAME AGE
-------- ----------
ANAND 34
ALTAF 36
JAGADESH 30
JULIANA 32
KAMALA 32
MARY 30
NELSON 35
PATRICK 35
QADIR 35
RAMESH 33
REBECCA 33
REMITHA 30
REVATHI 31
VIJAYA 35

3) Display the names and ages of all the programmers.

SELECT NAME
FROM STUDIES
WHERE COURSE LIKE 'DAP'

Output:
NAME
--------
NELSON
REVATHI

4) What is the highest numbers of copies sold by a package?

SELECT MAX(SOLD) FROM SOFTWARE

Output:
SOLD
----------
114






5) Display the names and date of birth of all the programmer born in JANUARY.

SELECT DOB,NAME
FROM PROGRAMMER
WHERE TO_CHAR(DOB,'MON') LIKE 'JAN'

Output:
DOB NAME
--------- --------
31-JAN-68 JULIANA
01-JAN-67 REBECCA

6) Display lowest course fee.

SELECT MIN(CCOST) FROM STUDIES

Output:
MIN(CCOST)
----------
3500

7) How many programmer has done PGDCA course.

SELECT COUNT(NAME)
FROM STUDIES
WHERE COURSE LIKE 'PGDCA'

Output:
COUNT(NAME)
-----------
3

8) How much revenue has been earned through sales of packages in C.

SELECT SUM(SOLD*SCOST)
FROM SOFTWARE
WHERE DEV_IN LIKE 'C'

Output:
SUM(SOLD*SCOST)
---------------
113775
9) Display the details of software developed by Ramesh?

SELECT *
FROM SOFTWARE
WHERE NAME='RAMESH'

Output:
NAME TITLE DEV_IN SCOST DCOST SOLD
-------- -------------------- -------- ---------- ---------- ----------
RAMESH HOTEL MANAGEMENT DBASE 12000 35000 4
RAMESH DEAD LEE PASCAL 99.95 4500 73

10) How many programmers studied at SABHARI.

SELECT COUNT(NAME) AS NOPROGRAMMERS
FROM STUDIES
WHERE SPLACE='SABHARI'

Output:
NOPROGRAMMERS
-------------
4


11) Display the details of PACKAGES whose sales crossed the 20000 mark.

SELECT *
FROM SOFTWARE
WHERE (SOLD*SCOST)>20000

Output:
NAME TITLE DEV_IN SCOST DCOST SOLD
-------- -------------------- -------- ---------- ---------- ----------
ANAND VIDEO TITLING PACK PASCAL 7500 16000 9
JAGADESH SHARES MANAGEMENT ORACLE 3000 12000 14
KAMALA PAYROLL PACKAGE DBASE 9000 20000 7
MARY FINANCILA ACC S/W ORACLE 18000 85000 4
MARY CODE GENERATOR C 4500 20000 23
MARY READ ME C++ 300 1200 84
QADIR BOMBS AWAY ASSEMBLY 499.95 530 114
QADIR VACCINES C 1900 3400 21
RAMESH HOTEL MANAGEMENT DBASE 12000 35000 4
REMITHA PC UTILITIES C 725 5000 51
REVATHI QUIZ MASTER BASIC 3200 2100 15

12) Find out the number of copies which should be sold in order to recover the development cost of each package.

SELECT ROUND(DCOST/SCOST)
FROM SOFTWARE
WHERE SCOST*SOLDDCOST

Output:
NAME TITLE DEV_IN SCOST DCOST SOLD
-------- -------------------- -------- ---------- ---------- ----------
ANAND PARACHUTES BASIC 399.95 6000 43
ANAND VIDEO TITLING PACK PASCAL 7500 16000 9
JAGADESH SERIAL LINK UTILITY JAVA 800 7500 10
JAGADESH SHARES MANAGEMENT ORACLE 3000 12000 14
KAMALA PAYROLL PACKAGE DBASE 9000 20000 7
MARY CODE GENERATOR C 4500 20000 23
MARY READ ME C++ 300 1200 84
PATRICK GRAPHIC EDITOR PASCAL 750 5000 11
QADIR BOMBS AWAY ASSEMBLY 499.95 530 114
QADIR VACCINES C 1900 3400 21
RAMESH HOTEL MANAGEMENT DBASE 12000 35000 4
RAMESH DEAD LEE PASCAL 99.95 4500 73
REMITHA PC UTILITIES C 725 5000 51
REMITHA TSR HELP PACKAGE ASSEMBLY 2500 6000 6
REVATHI QUIZ MASTER BASIC 3200 2100 15
VIJAYA ISK EDITOR C 900 700 6

15) How many packages were developed in dbase?

SELECT COUNT(TITLE) AS TOTAL
FROM SOFTWARE
WHERE DEV_IN='DBASE'

Output:
TOTAL
----------
2

16) How many programmers studies at paragathi?

SELECT COUNT(NAME)
FROM STUDIES
WHERE SPLACE='PRAGATHI'

Output:
COUNT(NAME)
-----------
3
17) How many programmers paid 5000 to 10000 for their course?

SELECT COUNT(NAME) AS NOOFPROGRAMMERS
FROM STUDIES
WHERE CCOST>=5000
AND CCOST<=10000 Output: NOOFPROGRAMMERS --------------- 6 18) What is the average course fee? SELECT AVG(CCOST) AS AVERAGECOST FROM STUDIES Output: AVERAGE_COST ------------ 10471.429 19) Display the details of programmers knowing c? SELECT * FROM PROGRAMMER WHERE PROF1='C' OR PROF2='C' Output: NAME DOB DOJ S PROF1 PROF2 SALARY -------- --------- --------- - -------- -------- ---------- KAMALA 30-OCT-68 02-JAN-92 F C DBASE 2900 QADIR 31-AUG-65 21-APR-93 M ASSEMBLY C 3000 REMITHA 19-APR-70 20-APR-93 F C ASSEMBLY 3600 VIJAYA 14-DEC-65 02-MAY-92 F FOXPRO C 3500 20) How many programmers know either Cobol or Pascal? SELECT COUNT(NAME) AS PROGRAMMERS FROM PROGRAMMER WHERE PROF1='COBOL' OR PROF1='PASCAL' OR PROF2='COBOL' OR PROF2='PASCAL' Output: PROGRAMMERS ----------- 8 21) How many programmers don't know Pascal & C? SELECT COUNT(NAME) AS PROGRAMMER FROM PROGRAMMER WHERE PROF1!='C' AND PROF1!='PASCAL' AND PROF2!='C' AND PROF2!='PASCAL' Output: PROGRAMMER ---------- 6 22) How old is the oldest male programmers? SELECT MAX(FLOOR((SYSDATE - DOB)/365)) AS OLDESTMALEPROGRAMMERAGE FROM PROGRAMMER Output: OLDESTMALEPROGRAMMERAGE ----------------------- 36 23) What is the average age of female programmers? SELECT FLOOR(AVG(FLOOR((SYSDATE - DOB)/365))) AS AVERAGEFEMALEAGE FROM PROGRAMMER Output: AVERAGEFEMALEAGE ---------------- 32 24) Calculate the experience in years for each programmers and display along with the names in descending order? SELECT NAME AS PRNAME,FLOOR((SYSDATE - DOJ)/365) AS EXPERIENCE FROM PROGRAMMER ORDER BY NAME DESC Output: PR_NAME EXPERIENCE -------- ---------- VIJAYA 8 REVATHI 9 REMITHA 7 REBECCA 10 RAMESH 10 QADIR 7 PATRICK 10 NELSON 11 MARY 10 KAMALA 9 JULIANA 10 JAGADISH 6 ANAND 8 ALTAF 10 25) Who are the programmers who celebrate their birthday during the current month? SELECT NAME FROM PROGRAMMER WHERE TO_CHAR(DOB,'MM')=TO_CHAR(SYSDATE,'MM') Output: NAME -------- ANAND REMITHA 26) How many female programmers are there? SELECT COUNT(NAME) AS NOFPROG FROM PROGRAMMER WHERE SEX='F' Output: NO_OF_FEMALE_PROGRAMMERS ------------------------ 7 27) What are the languages known by the male programmers? SELECT DISTINCT PROF1 AS LANGUAGES FROM PROGRAMMER WHERE SEX='M' UNION SELECT DISTINCT PROF2 AS LANGUAGES FROM PROGRAMMER WHERE SEX='M' Output: LANGUAGE -------- ASSEMBLY BASIC C CLIPPER COBOL DBASE JAVA ORACLE PASCAL 28) What is the Average salary? SELECT AVG(SALARY) AS AVGSAL FROM PROGRAMMER Output: AVERAGE_SALARY -------------- 3235.7143 29) How many people draw 2000 to 4000? SELECT NAME AS PRNAME FROM PROGRAMMER WHERE SALARY>= 2000
OR SALARY <=4000 Output: NAME -------- ANAND ALTAF JULIANA KAMALA NELSON PATRICK QADIR RAMESH REBECCA REMITHA REVATHI VIJAYA 30) Display the details of those who don't know Clipper, Cobol or Pascal? SELECT * FROM PROGRAMMER WHERE PROF1 NOT IN ('CLIPPER','COBOL','PASCAL') AND PROF2 NOT IN ('CLIPPER','COBOL','PASCAL') Output: NAME DOB DOJ S PROF1 PROF2 SALARY -------- --------- --------- - -------- -------- ---------- JAGADESH 06-OCT-70 04-OCT-94 M ORACLE JAVA 4100 KAMALA 30-OCT-68 02-JAN-92 F C DBASE 2900 MARY 24-JUN-70 01-FEB-91 F C++ ORACLE 4500 QADIR 31-AUG-65 21-APR-93 M ASSEMBLY C 3000 REMITHA 19-APR-70 20-APR-93 F C ASSEMBLY 3600 VIJAYA 14-DEC-65 02-MAY-92 F FOXPRO C 3500 31) How many Female programmers knowing C are above 24 years of age? SELECT COUNT(NAME) AS NOOFFPRG FROM PROGRAMMER WHERE SEX='F' AND (PROF1='C' OR PROF2='C') AND ((SYSDATE-DOB)/365) > 24

Output:
NOOFFPRG
----------
3

32) Who are the programmers who will be celebrating their Birthday within a week?

SELECT NAME
FROM PROGRAMMER
WHERE TO_CHAR(DOB,'WW') LIKE TO_CHAR(SYSDATE,'WW')

OR

select * from programmer where
to_char(dob,'dd') between to_char(sysdate,'dd') and
to_char(next_day(sysdate,(to_char(sysdate,'day'))),'dd') and
to_char(dob,'mon') between to_char(sysdate,'mon') and
to_char(next_day(sysdate,(to_char(sysdate,'day'))),'mon')

Output:
no rows selected

33 Display the details of those with less than a year's experience?

SELECT *
FROM PROGRAMMER
WHERE FLOOR((SYSDATE - DOJ)/365)<1 Output: NAME DOB DOJ S PROF1 PROF2 SALARY -------- --------- --------- - -------- -------- -------- ANAND 21-APR-66 21-APR-92 M PASCAL BASIC 3200 ALTAF 02-JUL-64 13-NOV-90 M CLIPPER COBOL 2800 JAGADISH 06-OCT-70 04-OCT-94 M ORACLE JAVA 4100 JULIANA 31-JAN-68 21-APR-90 F COBOL DBASE 3000 KAMALA 30-OCT-68 02-JAN-92 F C DBASE 2900 MARY 24-JUN-70 01-FEB-91 F C++ ORACLE 4500 NELSON 11-SEP-65 11-OCT-89 M COBOL DBASE 2500 PATRICK 19-NOV-65 21-APR-90 M PASCAL CLIPPER 2800 QADIR 31-AUG-65 21-APR-93 M ASSEMBLY C 3000 RAMESH 03-MAY-67 28-FEB-91 M PASCAL DBASE 3200 REBECCA 01-JAN-67 01-DEC-90 F BASIC COBOL 2500 REMITHA 19-APR-70 20-APR-93 F C ASSEMBLY 3600 REVATHI 02-DEC-69 02-JAN-92 F PASCAL BASIC 3700 VIJAYA 14-DEC-65 02-MAY-92 F FOXPRO C 3500 14 rows selected. 34 Display the details of those who will be completing 2 years of service this year? SELECT NAME AS PRNAME FROM PROGRAMMER WHERE FLOOR((SYSDATE-DOJ)/365)=2; OR select * from programmer where (to_number(to_char(sysdate,'yyyy'))-to_number(to_char(doj,'yyyy')))=2; OR SELECT * FROM PROGRAMMER WHERE (100 + MONTHS_BETWEEN('31-DEC-00',DOJ)/12)>=2 AND
(100 + MONTHS_BETWEEN(SYSDATE,DOJ)/12) != 2;

Output:
no rows selected

35 Calculate the amount to be recovered for those packages whose development cost has not been recovered?

SELECT (DCOST-(SCOST*SOLD)),TITLE
FROM SOFTWARE
WHERE (SCOST*SOLD)2
AND SEX='F'
AND (PROF1='COBOL' OR PROF2='COBOL')

Output:
PRNAME
--------
JULIANA
REBECCA





43) What is the length of the shortest name in the programmer table?

SELECT MIN(LENGTH(NAME)) AS SHORTNAME
FROM PROGRAMMER

Output:
SHORTNAME
----------
4

44) What is the average development cost of a package developed in COBOL?

SELECT AVG(DCOST) AS AVGCOST
FROM SOFTWARE
WHERE DEV_IN='COBOL'

Output:
AVGCOST
----------
3500

45) Display the name,sex,dob(DD/MM/YY format), doj for all the programmers without using conversion function?

SELECT NAME AS PRNAME, SEX AS SEX, SUBSTR(DOB,1,2)'/'SUBSTR(DOB,4,3)'/'SUBSTR(DOB,8,2) AS DATEOFBIRTH, SUBSTR(DOJ,1,2)'/'SUBSTR(DOJ,4,3)'/'SUBSTR(DOJ,8,2) AS DATEOFJOIN FROM PROGRAMMER



Output:
PRNAME S DATEOFBIR DATEOFJOI
-------- - --------- ---------
ANAND M 21/APR/66 21/APR/92
ALTAF M 02/JUL/64 13/NOV/90
JAGADESH M 06/OCT/70 04/OCT/94
JULIANA F 31/JAN/68 21/APR/90
KAMALA F 30/OCT/68 02/JAN/92
MARY F 24/JUN/70 01/FEB/91
NELSON M 11/SEP/65 11/OCT/89
PATRICK M 19/NOV/65 21/APR/90
QADIR M 31/AUG/65 21/APR/93
RAMESH M 03/MAY/67 28/FEB/91
REBECCA F 01/JAN/67 01/DEC/90
REMITHA F 19/APR/70 20/APR/93
REVATHI F 02/DEC/69 02/JAN/92
VIJAYA F 14/DEC/65 02/MAY/92

46) Who are the programmers who were born on the last day of the month?

SELECT NAME AS PRNAME
FROM PROGRAMMER
WHERE LAST_DAY(DOB) LIKE DOB

Output:
PRNAME
--------
JULIANA
QADIR







47) What is the amount paid in salaries of the male programmers who do not know Cobol?

SELECT SALARY AS SALOFPR
FROM PROGRAMMER
WHERE SEX='M'
AND (PROF1!='COBOL'
OR PROF2!='COBOL)

Output:
SALOFPR
----------
3200
2800
4100
2500
2800
3000
3200

48) Display the title, scost, dcost and difference between scost and dcost in descending order of difference?

SELECT TITLE AS SOFTNAME,SCOST AS SOFTCOST,DCOST AS DEVCOST,DCOST - SCOST DIFF FROM SOFTWARE
ORDER BY 4 DESC

Output:
SOFTNAME SOFTCOST DEVCOST DIFF
-------------------- ---------- ---------- ----------
HOTEL MANAGEMENT 1100 75000 73900
FINANCILA ACC S/W 18000 85000 67000
HOTEL MANAGEMENT 12000 35000 23000
CODE GENERATOR 4500 20000 15500
PAYROLL PACKAGE 9000 20000 11000
SHARES MANAGEMENT 3000 12000 9000
VIDEO TITLING PACK 7500 16000 8500
SERIAL LINK UTILITY 800 7500 6700
PARACHUTES 399.95 6000 5600.05
DEAD LEE 99.95 4500 4400.05
PC UTILITIES 725 5000 4275
GRAPHIC EDITOR 750 5000 4250
TSR HELP PACKAGE 2500 6000 3500
VACCINES 1900 3400 1500
READ ME 300 1200 900
INVENTORY CONTROL 3000 3500 500
BOMBS AWAY 499.95 530 30.05
ISK EDITOR 900 700 -200
QUIZ MASTER 3200 2100 -1100

49) Display the name, dob, doj of those month of birth and month of joining are same?

SELECT NAME AS PRNAME
FROM PROGRAMMER
WHERE TO_CHAR(DOB,'MM')=TO_CHAR(DOJ,'MM')

Output:
PRNAME
--------
ANAND
JAGADESH
REMITHA





50) Display the names of the packages whose names contain more than 1 word?

SELECT TITLE AS PACKAGES
FROM SOFTWARE
WHERE TITLE LIKE '% %'

Output:
PACKAGES
--------------------
VIDEO TITLING PACK
SERIAL LINK UTILITY
SHARES MANAGEMENT
INVENTORY CONTROL
PAYROLL PACKAGE
FINANCILA ACC S/W
CODE GENERATOR
READ ME
GRAPHIC EDITOR
BOMBS AWAY
HOTEL MANAGEMENT
DEAD LEE
PC UTILITIES
TSR HELP PACKAGE
HOTEL MANAGEMENT
QUIZ MASTER
ISK EDITOR




QUERIES - II


1) Display THE NUMBER OF packages developed in EACH language.

SELECT DEV_IN AS LANGUAGE,COUNT(TITLE) AS NOOFPACK
FROM SOFTWARE
GROUP BY DEV_IN

Output:
LANGUAGE NOOFPACK
-------- ----------
ASSEMBLY 2
BASIC 2
C 4
C++ 1
COBOL 1
DBASE 2
JAVA 1
ORACLE 2
PASCAL 4

2) Display THE NUMBER OF packages developed by EACH person.

SELECT NAME AS PRNAME,COUNT(TITLE)AS NOOFPACK
FROM SOFTWARE
GROUP BY NAME

Output:
PRNAME NOOFPACK
-------- ----------
ANAND 2
JAGADESH 2
JULIANA 1
KAMALA 1
MARY 3
PATRICK 1
QADIR 2
RAMESH 2
REMITHA 2
REVATHI 2
VIJAYA 1

3) Display THE NUMBER OF male and female programmer.

SELECT SEX,COUNT(NAME) AS NAME
FROM PROGRAMMER
GROUP BY SEX
Output:
S NAME
- ---------
F 7
M 7










4) Display THE COSTLIEST packages and HIGEST selling developed in EACH language.

SELECT DEV_IN AS LANGAUGE,MAX(SCOST) AS COSTPACK,MAX(SOLD) AS HIGHPACK
SFROM SOFTWARE
GROUP BY DEV_IN

Output:
LANGAUGE COSTPACK HIGHPACK
-------- ---------- ----------
ASSEMBLY 2500 114
BASIC 3200 43
C 4500 51
C++ 300 84
COBOL 3000 0
DBASE 12000 7
JAVA 800 10
ORACLE 18000 14
PASCAL 7500 73

5) Display THE NUMBER OF people BORN in EACH YEAR.

SELECT TO_CHAR(DOB,'YY') AS YEAR,COUNT(NAME) AS PRNO
FROM PROGRAMMER
GROUP BY TO_CHAR(DOB,'YY')

Output:
YE PRNO
-- ----------
64 1
65 4
66 1
67 2
68 2
69 1
70 3

6) Display THE NUMBER OF people JOINED in EACH YEAR.

SELECT TO_CHAR(DOJ,'YY') AS YEAR,COUNT(NAME) AS PRNO
FROM PROGRAMMER
GROUP BY TO_CHAR(DOJ,'YY')

Output:
YE PRNO
-- ----------
89 1
90 4
91 2
92 4
93 2
94 1













7) Display THE NUMBER OF people BORN in EACH MONTH.

SELECT SUBSTR(DOB,4,3) AS MONTHOFBIRTH,COUNT(NAME) AS PRNO FROM PROGRAMMER
GROUP BY SUBSTR(DOB,4,3)

Output:
MON PRNO
--- ----------
APR 2
AUG 1
DEC 2
JAN 2
JUL 1
JUN 1
MAY 1
NOV 1
OCT 2
SEP 1

8) Display THE NUMBER OF people JOINED in EACH MONTH.

SELECT SUBSTR(DOJ,4,3) AS MONTHOFJOIN,COUNT(NAME) AS PRNO
FROM PROGRAMMER
GROUP BY SUBSTR(DOJ,4,3)

Output:
MON PRNO
--- ----------
APR 5
DEC 1
FEB 2
JAN 2
MAY 1
NOV 1
OCT 2

9) Display the language wise COUNTS of prof1.

SELECT PROF1 AS LANGUAGE, COUNT(PROF1) AS PROF1COUNT
FROM PROGRAMMER
GROUP BY PROF1

Output:
LANGUAGE PROF1COUNT
-------- ----------
Assembly 1
Basic 1
C 2
C++ 1
Clipper 1
Cobol 2
Foxpro 1
Oracle 1
Pascal 4










10) Display the language wise COUNTS of prof2.

SELECT PROF2 AS LANGUAGE, COUNT(PROF2) AS PROF2COUNT
FROM PROGRAMMER
GROUP BY PROF2

Output:
LANGUAGE PROF2COUNT
-------- ----------
Assembly 1
Basic 2
C 2
Clipper 1
Cobol 2
Dbase 4
Java 1
Oracle 1

11) Display THE NUMBER OF people in EACH salary group.

SELECT SALARY,COUNT(NAME) AS PEOPLE
FROM PROGRAMMER
GROUP BY SALARY

Output:
SALARY PEOPLE
---------- ----------
2500 2
2800 2
2900 1
3000 2
3200 2
3500 1
3600 1
3700 1
4100 1
4500 1

12) Display THE NUMBER OF people who studied in EACH institute.

SELECT SPLACE AS INSTITUTE,COUNT(NAME) AS PEOPLE
FROM STUDIES
GROUP BY SPLACE

Output:
INSTITUTE PEOPLE
--------- ----------
APPLE 1
BDPS 2
BITS 1
BRILLIANT 1
CCIT 1
PRAGATHI 3
S.S.I.L 1
SABHARI 4









13) Display THE NUMBER OF people who studied in EACH course.

SELECT COURSE AS STUDY,COUNT(NAME) AS PEOPLE
FROM STUDIES GROUP BY COURSE

Output:
STUDY PEOPLE
----- ----------
DAP 2
DCA 4
DCA/P 1
DCAP 1
DCP 1
DCS 1
HDCP 1
PGDCA 3

14) Display the TOTAL development COST of the packages developed in EACH language.

SELECT DEV_IN AS LANGUAGE,SUM(DCOST) AS TOTCOST
FROM SOFTWARE
GROUP BY DEV_IN

Output:
LANGUAGE TOTCOST
-------- ----------
ASSEMBLY 6530
BASIC 8100
C 29100
C++ 1200
COBOL 3500
DBASE 55000
JAVA 7500
ORACLE 97000
PASCAL 100500

15) Display the selling cost of the package developed in EACH language.

SELECT DEV_IN AS LANGUAGE,SUM(SCOST) AS SELLCOST
FROM SOFTWARE
GROUP BY DEV_IN

Output:
LANGUAGE SELLCOST
-------- ----------
ASSEMBLY 2999.95
BASIC 3599.95
C 8025
C++ 300
COBOL 3000
DBASE 21000
JAVA 800
ORACLE 21000
PASCAL 9449.95










16) Display the cost of the package developed by EACH programmer.

SELECT NAME AS PRNAME,SUM(DCOST) AS TOTCOST
FROM SOFTWARE
GROUP BY NAME

Output:
PRNAME TOTCOST
-------- ----------
ANAND 22000
JAGADESH 19500
JULIANA 3500
KAMALA 20000
MARY 106200
PATRICK 5000
QADIR 3930
RAMESH 39500
REMITHA 11000
REVATHI 77100
VIJAYA 700

17) Display the sales values of the package developed in EACH programmer.

SELECT NAME AS PRNAME, SUM(SCOST*SOLD) AS SALESVAL
FROM SOFTWARE
GROUP BY NAME

Output:
PRNAME SALESVAL
-------- ----------
ANAND 84697.85
JAGADESH 50000
JULIANA 0
KAMALA 63000
MARY 200700
PATRICK 8250
QADIR 96894.3
RAMESH 55296.35
REMITHA 51975
REVATHI 50200
SOMDUTT 5400

18) Display the NUMBER of packages developed by EACH programmer.

SELECT NAME AS PRNAME,COUNT(TITLE) AS TOTPACK
FROM SOFTWARE
GROUP BY NAME

Output:
PRNAME TOTPACK
-------- ----------
ANAND 2
JAGADESH 2
JULIANA 1
KAMALA 1
MARY 3
SOMDUTT 1
NIHAR 2
RAMESH 2
REMITHA 2
REVATHI 2
VIJAYA 1




19) Display the sales COST of packages developed by EACH programmer language wise.

SELECT SUM(SCOST) AS SELLCOST
FROM SOFTWARE
GROUP BY DEV_IN

Output:
SELLCOST
----------
2999.95
3599.95
8025
300
3000
21000
800
21000
9449.92

20) Display EACH programmers name, costliest package and cheapest packages developed by Him/Her.

SELECT NAME PRNAME,MIN(DCOST) CHEAPEST,MAX(DCOST) COSTLIEST
FROM SOFTWARE
GROUP BY NAME

Output:
PRNAME CHEAPEST COSTLIEST
-------- ---------- ----------
ANAND 6000 16000
JAGADESH 7500 12000
JULIANA 3500 3500
KAMALA 20000 20000
MARY 1200 85000
PATRICK 5000 5000
QADIR 530 3400
RAMESH 4500 35000
REMITHA 5000 6000
REVATHI 2100 75000
VIJAYA 700 700

21) Display EACH language name with AVERAGE development cost, AVERAGE cost, selling cost and AVERAGE price per copy.

SELECT DEV_IN AS LANGUAGE,AVG(DCOST) AS AVGDEVCOST,AVG(SCOST) AS AVGSELLCOST,AVG(SCOST) AS PRICEPERCPY
FROM SOFTWARE
GROUP BY DEV_IN

Output:
LANGUAGE AVGDEVCOST AVGSELLCOST PRICEPERCPY
-------- ---------- ----------- -----------
ASSEMBLY 3265 1499.975 1499.975
BASIC 4050 1799.975 1799.975
C 7275 2006.25 2006.25
C++ 1200 300 300
COBOL 3500 3000 3000
DBASE 27500 10500 10500
JAVA 7500 800 800
ORACLE 48500 10500 10500
PASCAL 25125 2362.4875 2362.4875





22) Display EACH institute name with NUMBER of courses, AVERAGE cost per course.

SELECT SPLACE AS INSTITUTE,COUNT(COURSE) AS NOOFCOURS,AVG(CCOST) AS AVGCOSTPERCOUR
FROM STUDIES
GROUP BY SPLACE

Output:
INSTITUTE NOOFCOURS AVGCOSTPERCOUR
--------- ---------- --------------
APPLE 1 14000
BDPS 2 27000
BITS 1 22000
BRILLIANT 1 11000
CCIT 1 7200
PRAGATHI 3 5466.66667
S.S.I.L 1 3500
SABHARI 4 4625

23) Display EACH institute name with NUMBER of students.

SELECT SPLACE AS INSTITUTE,COUNT(NAME) AS NOOFSTUD
FROM STUDIES
GROUP BY SPLACE

Output:
INSTITUTE NOOFSTUD
--------- ----------
APPLE 1
BDPS 2
BITS 1
BRILLIANT 1
CCIT 1
PRAGATHI 3
S.S.I.L 1
SABHARI 4

24) Display names of male and female programmers.

SELECT NAME AS PRNAME,SEX AS SEX
FROM PROGRAMMER
ORDER BY SEX

Output:
PRNAME S
-------- -
JULIANA F
KAMALA F
MARY F
REMITHA F
VIJAYA F
REVATHI F
REBECCA F
ANAND M
PATRICK M
RAMESH M
QADIR M
NELSON M
ALTAF M
JAGADESH M





25) Display the programmer's name and their packages.

SELECT NAME AS PRNAME,TITLE AS PACKAGE
FROM SOFTWARE
ORDER BY NAME

Output:
PRNAME PACKAGE
-------- --------------------
ANAND PARACHUTES
ANAND VIDEO TITLING PACK
JAGADESH SERIAL LINK UTILITY
JAGADESH SHARES MANAGEMENT
JULIANA INVENTORY CONTROL
KAMALA PAYROLL PACKAGE
MARY FINANCILA ACC S/W
MARY CODE GENERATOR
MARY READ ME
PATRICK GRAPHIC EDITOR
QADIR BOMBS AWAY
QADIR VACCINES
RAMESH HOTEL MANAGEMENT
RAMESH DEAD LEE
REMITHA PC UTILITIES
REMITHA TSR HELP PACKAGE
REVATHI HOTEL MANAGEMENT
REVATHI QUIZ MASTER
VIJAYA ISK EDITOR

26) Display the NUMBER of packages in EACH language.

SELECT COUNT(TITLE) AS NOOFPACK,DEV_IN AS LANGUAGE
FROM SOFTWARE
GROUP BY DEV_IN

Output:
NOOFPACK LANGUAGE
---------- --------
2 ASSEMBLY
2 BASIC
4 C
1 C++
1 COBOL
2 DBASE
1 JAVA
2 ORACLE
4 PASCAL

27) Display the NUMBER of packages in EACH language for which development cost is less than 1000.

SELECT COUNT(TITLE) AS NOOFPACK,DEV_IN AS LANGUAGE
FROM SOFTWARE
WHERE DCOST<1000 GROUP BY DEV_IN Output: NOOFPACK LANGUAGE ---------- -------- 1 ASSEMBLY 1 C 28) Display the AVERAGE difference BETWEEN scost and dcost for EACH language. SELECT DEV_IN AS LANGUAGE,AVG(DCOST - SCOST) AS DIFF FROM SOFTWARE GROUP BY DEV_IN Output: AVG(DCOST-SCOST) ---------------- 1765.025 2250.025 5268.75 900 500 17000 6700 38000 22762.52 29) Display the TOTAL scost, dcsot and amount TOBE recovered for EACH programmer for whose dcost HAS NOT YET BEEN recovered. SELECT SUM(SCOST), SUM(DCOST), SUM(DCOST-(SOLD*SCOST)) FROM SOFTWARE GROUP BY NAME HAVING SUM(DCOST)>SUM(SOLD*SCOST)

Output:
SUM(SCOST) SUM(DCOST) SUM(DCOST-(SOLD*SCOST))
---------- ---------- -----------------------
3000 3500 3500
4300 77100 26900

30) Display highest, lowest and average salaries for THOSE earning MORE than 2000.

SELECT MAX(SALARY), MIN(SALARY), AVG(SALARY)
FROM PROGRAMMER
WHERE SALARY > 2000

Output:
MAX(SALARY) MIN(SALARY) AVG(SALARY)
----------- ----------- -----------
4500 2500 3235.7143


QUERIES - III


1) Who is the highest paid C programmer?

SELECT * FROM PROGRAMMER
WHERE SALARY=(SELECT MAX(SALARY)
FROM PROGRAMMER
WHERE PROF1 LIKE 'C' OR PROF2 LIKE 'C')

Output:
NAME DOB DOJ S PROF1 PROF2 SALARY
-------- --------- --------- - -------- -------- ---------
REMITHA 19-APR-70 20-APR-93 F C ASSEMBLY 3600

2) Who is the highest paid female cobol programmer?

SELECT * FROM PROGRAMMER
WHERE SALARY=(SELECT MAX(SALARY)
FROM PROGRAMMER
WHERE (PROF1 LIKE 'COBOL' OR PROF2 LIKE 'COBOL'))
AND SEX LIKE 'F'

Output:
NAME DOB DOJ S PROF1 PROF2 SALARY
-------- --------- --------- - -------- -------- ---------
JULIANA 31-JAN-68 21-APR-90 F COBOL DBASE 3000

3) Display the name of the HIGEST paid programmer for EACH language (prof1)

SELECT DISTINCT NAME, SALARY, PROF1
FROM PROGRAMMER
WHERE (SALARY,PROF1) IN (SELECT MAX(SALARY),PROF1
FROM PROGRAMMER
GROUP BY PROF1)

Output:
NAME SALARY PROF1
-------- --------- --------
REBECCA 2500 BASIC
ALTAF 2800 CLIPPER
DADIR 3000 ASSEMBLY
JULIANA 3000 COBOL
VIJAYA 3500 FOXPRO
REMITHA 3600 C
REVATHI 3700 PASCAL
JAGADESH 4100 ORACLE
MARY 4500 C++

4) Who is the LEAST experienced programmer?

SELECT FLOOR((SYSDATE-DOJ)/365) EXP,NAME
FROM PROGRAMMER
WHERE FLOOR((SYSDATE-DOJ)/365) = (SELECT MIN(FLOOR((SYSDATE-DOJ)/365))
FROM PROGRAMMER)

Output:
EXP NAME
--------- --------
5 JAGADESH





5) Who is the MOST experienced programmer?

SELECT FLOOR((SYSDATE-DOJ)/365) EXP,NAME,PROF1,PROF2
FROM PROGRAMMER
WHERE FLOOR((SYSDATE-DOJ)/365) = (SELECT MAX(FLOOR((SYSDATE-DOJ)/365))
FROM PROGRAMMER)
AND (PROF1 LIKE 'COBOL' OR PROF2 LIKE 'COBOL')

Output:
EXP NAME PROF1 PROF2
--------- -------- -------- --------
10 NELSON COBOL DBASE

6) Which language is known by ONLY ONE programmer?

SELECT PROF1
FROM PROGRAMMER
GROUP BY PROF1
HAVING PROF1 NOT IN
(SELECT PROF2 FROM PROGRAMMER)
AND COUNT(PROF1)=1
UNION
SELECT PROF2
FROM PROGRAMMER
GROUP BY PROF2
HAVING PROF2 NOT IN
(SELECT PROF1 FROM PROGRAMMER)
AND COUNT(PROF2)=1;

Output:
PROF1
--------
C++
Foxpro
Java

7) Who is the YONGEST programmer knowing DBASE?

SELECT FLOOR((SYSDATE-DOB)/365) AGE, NAME, PROF1, PROF2
FROM PROGRAMMER
WHERE FLOOR((SYSDATE-DOB)/365) = (SELECT MIN(FLOOR((SYSDATE-DOB)/365))
FROM PROGRAMMER
WHERE PROF1 LIKE 'DBASE' OR PROF2 LIKE 'DBASE')

Output:
AGE NAME PROF1 PROF2
---- -------- -------- --------
31 JULIANA COBOL DBASE
31 KAMALA C DBASE

8) Which institute has MOST NUMBER of students?

SELECT SPLACE
FROM STUDIES
GROUP BY SPLACE
HAVING COUNT(SPLACE)= (SELECT MAX(COUNT(SPLACE))
FROM STUDIES GROUP BY SPLACE)

Output:
SPLACE
---------
SABHARI



9) Who is the above programmer?

SELECT NAME
FROM PROGRAMMER
WHERE PROF1 IN (SELECT PROF1
FROM PROGRAMMER
GROUP BY PROF1
HAVING PROF1 NOT IN (SELECT PROF2 FROM PROGRAMMER)
AND COUNT(PROF1)=1
UNION
SELECT PROF2
FROM PROGRAMMER
GROUP BY PROF2
HAVING PROF2 NOT IN (SELECT PROF1 FROM PROGRAMMER)
AND COUNT(PROF2)=1))
UNION
SELECT NAME
FROM PROGRAMMER
WHERE PROF2 IN (SELECT PROF1
FROM PROGRAMMER
GROUP BY PROF1
HAVING PROF1 NOT IN (SELECT PROF2 FROM PROGRAMMER)
AND COUNT(PROF1)=1
UNION
SELECT PROF2
FROM PROGRAMMER
GROUP BY PROF2
HAVING PROF2 NOT IN (SELECT PROF1 FROM PROGRAMMER)
AND COUNT(PROF2)=1))

Output:
NAME
--------
JAGADESH
MARY
VIJAYA


10) Which female programmer earns MORE than 3000/- but DOES NOT know C, C++, Oracle or Dbase?

SELECT * FROM PROGRAMMER
WHERE SEX LIKE 'F'
AND SALARY >3000
AND (PROF1 NOT IN('C','C++','ORACLE','DBASE')
OR PROF2 NOT IN('C','C++','ORACLE','DBASE'))

Output:
NAME DOB DOJ S PROF1 PROF2 SALARY
-------- --------- --------- - -------- -------- ---------
REMITHA 19-APR-70 20-APR-93 F C ASSEMBLY 3600
REVATHI 02-DEC-69 12-JAN-92 F PASCAL BASIC 3700
VIJAYA 14-DEC-65 12-MAY-92 F FOXPRO C 3500

11) Which is the COSTLIEST course?

SELECT COURSE
FROM STUDIES
WHERE CCOST = (SELECT MAX(CCOST) FROM STUDIES)

Output:
COURS
-----
DCA



12) Which course has been done by MOST of the students?

SELECT COURSE
FROM STUDIES
GROUP BY COURSE
HAVING COUNT(COURSE)= (SELECT MAX(COUNT(COURSE))
FROM STUDIES
GROUP BY COURSE)

Output:
COURS
-----
DCA

13) Display name of the institute and course Which has below AVERAGE course fee?

SELECT SPLACE,COURSE
FROM STUDIES
WHERE CCOST < (SELECT AVG(CCOST) FROM STUDIES) Output: SPLACE COURS --------- ----- SABHARI PGDCA SABHARI PGDCA CCIT DCA S.S.I.L. DCA PRAGATHI DCP SABHARI PGDCA PRAGATHI DAP PRAGATHI DCAP SABHARI PGDCA BDPS DCS SABHARI DAP 14) Which institute conducts COSTLIEST course? SELECT SPLACE FROM STUDIES WHERE CCOST = (SELECT MAX(CCOST) FROM STUDIES) Output: SPLACE --------- BDPS 15) Which course has below AVERAGE number of students? SELECT COURSE FROM STUDIES HAVING COUNT(NAME)<(SELECT AVG(COUNT(NAME)) FROM STUDIES GROUP BY COURSE) GROUP BY COURSE; Output: COURS ----- DCA/P DCAP DCP DCS HDCP 16) Which institute conducts the above course? SELECT SPLACE FROM STUDIES WHERE COURSE IN (SELECT COURSE FROM STUDIES HAVING COUNT(NAME) < (SELECT AVG(COUNT(NAME)) FROM STUDIES GROUP BY COURSE) GROUP BY COURSE); Output: SPLACE --------- BRILLIANT PRAGATHI PRAGATHI BDPS APPLE 17) Display names of the course WHOSE fees are within 1000(+ or -) of the AVERAGE fee. SELECT COURSE FROM STUDIES WHERE CCOST < (SELECT AVG(CCOST)+1000 FROM STUDIES) AND CCOST > (SELECT AVG(CCOST)-1000 FROM STUDIES)

Output:
COURS
-----
DCA/P

18) Which package has the HIGEST development cost?

SELECT TITLE,DCOST
FROM SOFTWARE
WHERE DCOST = (SELECT MAX(DCOST) FROM SOFTWARE)

Output:
TITLE DCOST
-------------------- ---------
FINANCILA ACC S/W 85000


19) Which package has the LOWEST selling cost?

SELECT TITLE,SCOST
FROM SOFTWARE
WHERE SCOST = (SELECT MIN(SCOST) FROM SOFTWARE)

Output:
TITLE SCOST
-------------------- ---------
DEAD LEE 99.92

20) Who developed the package, which has sold the LEAST number of copies?

SELECT NAME,SOLD
FROM SOFTWARE
WHERE SOLD = (SELECT MIN(SOLD) FROM SOFTWARE)

Output:
NAME SOLD
-------- ---------
JULIANA 0

21) Which language was used to develop the package WHICH has the HIGEST sales amount?

SELECT DEV_IN,SCOST
FROM SOFTWARE
WHERE SCOST = (SELECT MAX(SCOST) FROM SOFTWARE)

Output:
DEV_IN SCOST
-------- ---------
ORACLE 18000

22) How many copies of the package that has the LEAST DIFFRENCE between development and selling cost were sold?

SELECT SOLD,TITLE
FROM SOFTWARE
WHERE TITLE = (SELECT TITLE
FROM SOFTWARE
WHERE (DCOST-SCOST)=(SELECT MIN(DCOST-SCOST) FROM SOFTWARE))

Output:
SOLD TITLE
---- --------------------
15 QUIZ MASTER

23) Which is the COSTLIEAST package developed in PASCAL?

SELECT TITLE
FROM SOFTWARE
WHERE DCOST = (SELECT MAX(DCOST)
FROM SOFTWARE
WHERE DEV_IN LIKE 'PASCAL')

Output:
TITLE
--------------------
HOTEL MANAGEMENT

24) Which language was used to develop the MOST NUMBER of package?

SELECT DEV_IN FROM SOFTWARE
GROUP BY DEV_IN
HAVING MAX(DEV_IN) = (SELECT MAX(DEV_IN) FROM SOFTWARE)

Output:
DEV_IN
--------
PASCAL

25) Which programmer has developed the HIGEST NUMBER of package?

SELECT NAME FROM SOFTWARE
GROUP BY NAME
HAVING MAX(NAME) = (SELECT MAX(NAME) FROM SOFTWARE)

Output:
NAME
--------
VIJAYA





26) Who is the author of the COSTLIEST package?

SELECT NAME,DCOST
FROM SOFTWARE
WHERE DCOST = (SELECT MAX(DCOST) FROM SOFTWARE)

Output:
NAME DCOST
-------- ---------
MARY 85000

27) Display names of packages WHICH have been sold LESS THAN the AVERAGE number of copies?

SELECT TITLE
FROM SOFTWARE
WHERE SOLD < (SELECT AVG(SOLD) FROM SOFTWARE) Output: TITLE -------------------- VIDEO TITLING PACK SERIAL LINK UTILITY SHARES MANAGMENT INVENTORY CONTROL PAYROLL PACKAGE FINANCILA ACC S/W CODE GENERATOR GRAPHIC EDITOR VACCINES HOTEL MANAGEMENT TSR HELP PACKAGE HOTEL MANAGEMENT QUIZ MASTER ISK EDITOR 28) Who are the female programmers earning MORE than the HIGEST paid male programmers? SELECT NAME FROM PROGRAMMER WHERE SEX LIKE 'F' AND SALARY > (SELECT(MAX(SALARY))
FROM PROGRAMMER
WHERE SEX LIKE 'M')

Output:
NAME
--------
MARY

29) Which language has been stated as prof1 by MOST of the programmers?

SELECT PROF1
FROM PROGRAMMER
GROUP BY PROF1
HAVING PROF1 = (SELECT MAX(PROF1)
FROM PROGRAMMER)

Output:
PROF1
--------
PASCAL




30) Who are the authors of packages, WHICH have recovered MORE THAN double the development cost?

SELECT NAME distinct
FROM SOFTWARE
WHERE SOLD*SCOST > 2*DCOST

Output:
NAME
--------
ANAND
JAGDESH
KAMALA
MARY
QADIR
REMITHA
REVATHI
VIJAYA

31) Display programmer names and CHEAPEST package developed by them in EACH language?

SELECT NAME,TITLE
FROM SOFTWARE
WHERE DCOST IN (SELECT MIN(DCOST)
FROM SOFTWARE
GROUP BY DEV_IN)

Output:
NAME TITLE
-------- --------------------
QADIR BOMBOS AWAY
VIJAYA ISK EDITOR
MARY READ ME
REVATHI QUIZ MASTER
JULIANA INVENTORY CONTROL
RAMESH DEAD LEE
JAGADESH SERIAL LINK UTILITY
JAGDESH SHARES MANAGMENT
KAMALA PAYROLL PACKAGE
MARY CODE GENERATOR

32) Who is the YOUNGEST male programmer born in 1965?

SELECT NAME
FROM PROGRAMMER
WHERE DOB=(SELECT (MAX(DOB))
FROM PROGRAMMER
WHERE TO_CHAR(DOB,'YYYY') LIKE '1965')

Output:
NAME
--------
VIJAYA











33) Display language used by EACH programmer to develop the HIGEST selling and LOWEST selling package.

SELECT NAME, DEV_IN
FROM SOFTWARE
WHERE SOLD IN (SELECT MAX(SOLD)
FROM SOFTWARE
GROUP BY NAME)
UNION
SELECT NAME, DEV_IN
FROM SOFTWARE
WHERE SOLD IN (SELECT MIN(SOLD)
FROM SOFTWARE
GROUP BY NAME)

Output:
NAME DEV_IN
-------- --------
ANAND BASIC
ANAND PASCAL
JAGADESH JAVA
JAGDESH ORACLE
JULIANA COBOL
KAMALA DBASE
MARY C++
MARY ORACLE
PATRICK PASCAL
QADIR ASSEMBLY
QADIR C
RAMESH DBASE
RAMESH PASCAL
REMITHA ASSEMBLY
REMITHA C
REVATHI BASIC
REVATHI PASCAL
VIJAYA C

34) Who is the OLDEST female programmer WHO joined in 1992

SELECT NAME
FROM PROGRAMMER
WHERE DOJ=(SELECT (MIN(DOJ))
FROM PROGRAMMER
WHERE TO_CHAR(DOJ,'YYYY') LIKE '1992')

Output:
NAME
--------
KAMALA
REVATHI

35) In WHICH year where the MOST NUMBER of programmer born?

SELECT DISTINCT TO_CHAR(DOB,'YYYY')
FROM PROGRAMMER
WHERE TO_CHAR(DOJ,'YYYY') = (SELECT MIN(TO_CHAR(DOJ,'YYYY'))
FROM PROGRAMMER)

Output:
TO_C
----
1965




36) In WHICH month did MOST NUMBRER of programmer join?

SELECT DISTINCT TO_CHAR(DOJ,'MONTH')
FROM PROGRAMMER
WHERE TO_CHAR(DOJ,'MON') = (SELECT MIN(TO_CHAR(DOJ,'MON'))
FROM PROGRAMMER)

Output:
TO_CHAR(D
---------
APRIL

37) In WHICH language are MOST of the programmer's proficient?

SELECT PROF1
FROM PROGRAMMER
GROUP BY PROF1
HAVING COUNT(PROF1)=(SELECT MAX(COUNT(PROF1))
FROM PROGRAMMER
GROUP BY PROF1)
OR COUNT(PROF2)=(SELECT MAX(COUNT(PROF2))
FROM PROGRAMMER
GROUP BY PROF2)
UNION
SELECT PROF2
FROM PROGRAMMER
GROUP BY PROF2
HAVING COUNT(PROF1)=(SELECT MAX(COUNT(PROF1))
FROM PROGRAMMER
GROUP BY PROF1)
OR COUNT(PROF2)=(SELECT MAX(COUNT(PROF2))
FROM PROGRAMMER
GROUP BY PROF2)

Output:
PROF1
--------
DBASE
PASCAL

38) Who are the male programmers earning BELOW the AVERAGE salary of female programmers?

SELECT NAME
FROM PROGRAMMER
WHERE SEX LIKE 'M'
AND SALARY < (SELECT(AVG(SALARY)) FROM PROGRAMMER WHERE SEX LIKE 'F') Output: NAME -------- ANAND ALTAF NELSON PATRICK DADIR RAMESH QUERY - IV 1) Display the details of THOSE WHO are drawing the same salary. select a.name,a.salary from programmer a,programmer b where a.salary=b.salary and a.name <> b.name
OR

select name, salary from programmer where
salary = any(select salary from programmer p group by salary having
salary=p.salary and count(*)>1)


2) Display the details of software developed by male programmers earing MORE than 3000.
select software.*
from programmer p,software s
where p.name=s.name and salary>3000 and sex='m';

3) Display details of packages developed in PASCAL by female programmers.
select s.*
from programmer p,software s
where p.name=s.name and sex='f' and dev_in='pascal';

4) Display the details of these programmer WHO joined BEFORE 1990.
select *
from programmer
where to_char(doj,'yy')<90; 5)Display details of software developed in C by female programmers of PRAGATHI. select s.* from software s,studies st,programmer p where s.name=st.name and p.name=s.name and sex='f' and splace='pragathi'; 6) Display NUMBER of packages NUMBER of copies sold and sales value of EACH programmer Institute-wise. Select studies.splace, count(software.dev_in), count(software.sold), sum(software.sold*software.scost) from software,studies where software.name=studies.name group by studies.splace; 7) Display details of software developed in DBASE by male programmers WHO belong to the institute on which MOST NUMBER OF programmers studies. select software.* from programmer,software,studies where programmer.name=software.name and software.name=studies.name and programmer.name=studies.name and sex='m' and dev_in='dbase' and splace= (select splace from studies group by splace having count(splace) =(select max(count(splace)) from studies group by splace)); 8) Display the details of the software that was developed by male programmers born BEFORE 1965 and female programmers born AFTER 1975. select software.* from programmer p,software s where s.name=p.name and sex='m' and to_char(dob,'yy')<64 sex="'f'">75);

9) Display the details of the software that was developed in the language that is NOT the programmers first proficiency.
select *
from software
where dev_in in(select unique(prof2)
from programmer
where prof2 not in(select prof1
from programmer));

or

select distinct x.* from software x, programmer y
where y.prof1 <> x.dev_in
and x.name = y.name


10) Display details of software that was developed in the language which is NITHER first NOR second proficiency of the programmer.
select s.*
from programmer p,software s
where s.name=p.name and (dev_in <> prof1 and dev_in <> prof2);

11) Display details of software developed by male students of SABHARI.
select s.*
from programmer p,software s,studies st
where p.name=s.name and s.name=st.name and sex='m' and splace='sabhari';

12) Display the names of programmers WHO HAVE NOT developed any package.
select name
from programmer
where name not in(select name
from software);
or

select distinct name from programmer minus
select distinct name from software;

13) What is the total cost of the software developed by the programmers by APPLE?
select sum(scost)
from software s,studies st
where s.name=st.name and splace='apple';
or

select sum(x.scost) from software x, studies y where
x.name=y.name
group by y.splace
having
y.splace = 'APPLE'

14) Who are the programmers WHO JOINED in the same day?
select a.name,a.doj
from programmer a,programmer b
where a.doj=b.doj and a.name <> b.name;
or

select name from programmer where to_char(doj,'dd')=
any(select to_char(doj,'dd') from programmer
group by
to_Char(doj,'dd')
having
count(*)>1)


15) Who are the programmers WHO HAVE THE SAME PROF2?
select unique(a.name),a.prof2
from programmer a,programmer b
where a.prof2=b.prof2 and a.name <> b.name;

or

select name from programmer where prof2 = any(
select prof2 from programmer group by prof2 having count(*) >1);


16) Display the total sales values of software, institutes-wise.
select studies.splace,sum(software.sold*software.scost)
from software,studies
where studies.name=software.name group by studies.splace;

17) In which institutes did the person who developed the COSTLIEST package study?
select splace
from software st,studies s
where s.name=st.name group by splace,dcost having max(dcost)=(select max(dcost) from software);
or

select x.splace from studies x, software y where
y.scost = ( select max(y.scost) from software y) and
x.name=y.name;


18) Which language listed in prof1 and prof2 HAS NOT BEEN used to develop any package?
select prof1
from programmer
where prof1 not in(select dev_in
from software) union
select prof2
from programmer
where prof2 not in(select dev_in from software);
or

(select distinct prof1 from prgrammer union
select distinct prof2 from programmer) minus
select distinct dev_in from software;


19) How much does the person WHO developed the HIGHEST selling package earn and WHAT course did he/she undergo?
select p1.salary,s2.course
from programmer p1,software s1,studies s2
where p1.name=s1.name and s1.name=s2.name and scost=(select max(scost) from software);

20) How many months will it take for each programmer to recover the cost of the course underwent?
select p.name,ceil(ccost/salary)
from programmer p,studies s
where s.name=p.name;

21) Which is the COSTLIEST package developed by a person with under 3 years expenence?
select dev_in
from programmer p,software s
where p.name=s.name and dcost= (select max(software.dcost)
from programmer p, software s
where p.name=s.name and to_char(round(((sysdate- doj)/365)+100))<3); or select x.title from software x, programmer y where (months_between(sysdate, y.doj)/12) > 3 and
x.name=y.name;


22) What is the AVERAGE salary for those WHOSE software's sales value is more than 50,000?
select avg(salary)
from programmer p,software s
where p .name=s.name and sold*scost>50000;

23) How many packages were developed by the students WHO studied in the institute that Charge the LOWEST course fee?
select count(s.name)
from software s,studies st
where s.name=st.name group by s.name,ccost having min(ccost)=(select min(ccost) from studies);

24) How many packages were developed by the person WHO developed the CHEAPEST package. Where did he\she study?
select count(*)
from programmer p,software s
where s .name=p.name group by dev_in having min(dcost)=(select min(dcost) from software);

25) How many packages were developed by female programmers earning MORE than the HIGHEST paid male programmer?
select count(dev_in)
from programmer p,software s
where s.name=p.name and sex='f' and salary>(select max(salary)
from programmer p,software s
where s.name=p.name and sex='m');

26) How many packages were developed by the MOST experienced programmers from BDPS.
select count(*)
from software s,programmer p
where p.name=s.name group by doj having max(doj)=(select max(doj)
from studies st,programmer p, software s
where p.name=s.name and st.name=p.name and (splace='bdps'));

or

select count(x.name) from software x, programmer y, studies x where
months_between(sysdate, y.doj)/12) = (select max(months_between(sysdate,y.doj)/12)
from programmer y, studies = where
x.splace = 'BDPS' and y.name = z.name) and
x.name=y.name and
z.splace='BDPS'


27) List the programmers (from software table) and institutes they studied, including those WHO DIDN'T develop any package.
select name,splace
from studies
where name not in(select name
from software);
or

(select distinct x.name, z.splace from programmer x, software y, studies z where
x.name not in (select y.name from software y) and
x.name = z.name) union
(select distinct y.name, z.splace from
software y, studies z where y.name=z.name);


28) List each profit with the number of programmers having that prof1 and the number of packages developed in that prof1.
select count(*),sum(scost*sold-dcost) "PROFIT"
from software
where dev_in in (select prof1
from programmer) group by dev_in;

29) List programmer names (from programmer table) and number of packages EACH developed.
select s.name,count(dev_in)
from programmer p1,software s
where p1.name=s.name group by s.name;
or

select programmer name, count(title) from programmer , software
where
programmer name = software.name(+)
group by programmer.name;


30) List all the details of programmers who has done a course at S.S.I.L.
select programmer.*
from programmer,studies
where splace='SSIL' and programmer.name=software.name and programmer.name=studies.name and studies.splace='s.s.i.l.';