New SQL PLSQL Interview Questions :: ALLInterview.com

how to saw triggers output in pl/sql database?

HOW CAN I FIND MAX SAL ,ENAME FROM EMP TABLE.

select max(sal),ename from emp where sal=(select max(sal) from emp) group by ename;

What is the difference between CHAR and VARCHAR2? If VARCHAR2 serves

in char it allocates the memory space as static where as in varchar2 it allocates the memory space as dynamic OR char is a space mapping function where as in varchar2 it is not mapping the space it occupies the exact size of the string

When the mutating error will comes? and how it will be resolved?

when we try to dml operation on orginal table in trigger. then the trigger was excuted but while perfoming any action on original table it will show mutating.. to overcome the above problem we need to create a autonamous trasaction trigger..

Can we use SQL%ISOPEN in implicit cursors? Does this attribute works

Implicit cursors: SQL%ISOPEN always returns FALSE, indicating that the implicit cursor has been closed. I hope below example gives you very fair idea. SQL> BEGIN 2 UPDATE employee 3 SET salary = salary *2 4 WHERE i

what is Complex index. how to create it?

how to select alphabets in a one column , for this the table name i

Dear friend , you can use this select statement:- select trim(translate(TASK_NUMBER,'.0123456789',' ')) from PA_TASKS; For example:- select trim(translate('1.1.3NN','.0123456789',' ')) from

hi this is nakka i have been looking for 1+ exp in oracle sql,plsql

Hi friend, As you know that market is poor now, however my kind suggestion is that please learn Unix shell scripting also. You must have good exposure in SQL and PL/SQL and unix , if you have idea about Oracle forms & reports it is add

how to connect oracle in unix prompt?

HI, This is not a big job $ su orcale10g $sql plus username/password-scott/tiger If not connected just mail me on my mail id omkarp.joshi@yahoo.co.uk

Hello All, Could any well write a query for the following scenario.

Select No,Name,to_char(Sal,'$9999.99') amount from emp;

Hello All, Could any well write a query for the following scenario.

select no, name, case amount/abs(amount) when 1 then amount else 0 end credit, case amount/abs(amount) when -1 then amount else 0 end Debit from account

what the meaning of sql

Structured Query Language

what is oracle sql,pl/sql with interfaces

sql * plus

how to remove records from table? no name 1 a 2 b 1 a 2 b

delete From ;

why use cursors?

Cursor is used to process multiple rows using pl/sql.