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SQL Functions

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Rakesh said…
thank u so much for these presentation slides it helps me a lot .whenever i have a dought i go through these slides n clear it ,thank u once again for sharing these.........
siddu said…
sir,slides are not in order.
vidya said…
hello sir... dis s vidya... its of gr8 help 4 students who r not able 2 attend ur class... the slides r not in order n its a bit difficult 2 study it sequentially... cud u plz put dem in order?
vidya said…
sir, i was able to follow it.... no issues...
ANIL said…
What is the difference between SQL and PL/SQL?
ANIL said…
What is the difference between SQL and PL/SQL?
Anonymous said…
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TARUN said…
HELLO FRIENDS PLEASE JOIN THIS GROUP TO SHARE YOUR INFORMATION OF JOB OPENINGS
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Raju V said…
Sir,

I have an interview question as below. Please solve and help me wit h solution.
In one table there are 2 columns say a and b
column a contains xx in 1st row, xx in 2nd row.
column b contains yyy in 1st row, yyy in 2nd row and yyy in 3rd row.

The select statement should display as below. Please help me to solve this.

xx = 2
yyy = 3

Thanks,
Raju V
Smrutiranjan_a said…
Sir can you tell me the difference between trigger and constraint?
Kollul Baruah said…
hi sir
whats exactly happen in this two query
select 'abc'from emp;
select 'abc'abc from emp;
why in the first query in column heading c is not coming.u can xplain in evening 4 o clock jspider batch.i am from dere
sameera sultana said…
sir am not able to the functions slide.plz post it..
sameera sultana said…
HI sir,
Am not able to see the functions slide sir.plz post it again...
sameera sultana said…
sir am not able to the functions slide.plz post it..
sameera sultana said…
sir am not able to the functions slide.plz post it..

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Answers for SUB Queries

1. SQL> select empno, ename from emp where deptno=(select deptno from dept where dname='RESEARCH');


2. SQL> select empno, ename from emp where deptno in (select deptno from dept where loc in ('NEW YORK','CHICAGO'));

3. SQL> select dname from dept where deptno in ( select deptno from emp where job ='ANALYST');

4. SQL> select empno, ename, mgr from emp where mgr = (select empno from emp where ename='JONES');

5. SQL> select empno, ename, mgr from emp where mgr = (select mgr from emp where ename='JONES')

6. SQL> select empno, ename, job from emp where deptno in ( select deptno from dept where dname in ('SALES','ACCOUNTING'))

7. SQL> select empno, ename, job from emp where deptno in ( select deptno from dept where dname in ('SALES','RESEARCH')) and empno in (select mgr from emp)

8. SQL> select empno, ename from emp where empno not in ( select mgr from emp where mgr is not null)

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