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SQL Functions

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Unknown 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…
HELLO
PLEASE JOIN THIS GROUP TO SHARE THE INFORMATION OF VARIOUS JOIN OPENINGS

https://www.facebook.com/groups/motivatedjobseekers
TARUN said…
HELLO FRIENDS PLEASE JOIN THIS GROUP TO SHARE YOUR INFORMATION OF JOB OPENINGS
https://www.facebook.com/groups/motivatedjobseekers
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?
Unknown 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
Unknown said…
sir am not able to the functions slide.plz post it..
Unknown said…
HI sir,
Am not able to see the functions slide sir.plz post it again...
Unknown said…
sir am not able to the functions slide.plz post it..
Unknown said…
sir am not able to the functions slide.plz post it..

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Answers for SQL Functions

1. SQL> SELECT empno, ename FROM emp WHERE Length(ename) = 4;

2. SQL> SELECT empno, ename, job FROM emp where Length(job)=7;

3. SQL> SELECT Length('qspiders') - Length(replace('qspiders','s','')) FROM dual;

4. SQL>  SELECT empno, ename, job FROM emp WHERE Instr(job,'MAN') >0;

5. SQL> SELECT empno, ename, job FROM emp WHERE Instr(job, 'MAN') =1;

6. SQL> SELECT empno, ename, job FROM emp WHERE (Length(ename) - Length(Replace(ename, 'L',''))) = 1;

7. SQL> SELECT * FROM dept WHERE Instr(dname,'O') > 0;

8. SQL> SELECT Concat(ename,' working as a ') || Concat(job, ' earns ') || Concat(sal, '  in ') || Conc
at('dept ',deptno) AS text from emp;

OR

SQL> SELECT Concat(Concat(Concat(Concat(Concat(Concat(Concat(ename,' working as a '), job),' earns '), sal),'  in '),'dept '), deptno) AS text FROM emp;

9. SQL> SELECT empno, ename…