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IBM SQL PLSQL Interview Questions
Questions Answers Views Company eMail

What is Referential Integrity?

3 9409

what is the difference between union and union all

14 36852

What are nested triggers ?

6 25299

how to check the 3rd max salary from an employee table?

22 22941

how to retrive only second row from table?

31 35831

what is a cursor

9 10273

which will fire first ? Trigger or Constraint

24 35643

How to improve the performance of a pl/sq stored procedures or functions or triggers and packages ?

11 18838

how to find the second highest salary from emp table?

209 266015

wht is the difference between sqlaserver2000 and 2005

1 4226

what is the difference between the query and corelated query

8 13312

How many database objects (trigger, packages, sequence etc) uses a particular field in a given table. For ex: I want to know how many database object uses the ATTRIBUTE1 in the PO_VENDORS table. What query will give me the result showing the database object name(package, trigger etc), field_name used (in this case ATTRIBUTE1) and table_name (in this case PO_VENDORS).

2 6262

suppose I have two table one Emp and other is dpt. Emp table has a field ,dept id,name ,sal and dpt table has a field dept id,dept name. Now I want to find out the emplyee list whose sal is between 2000-3000 from dept x.

7 8865

What does “select count(*) from tab” result?

15 17755

What does “select count(1) from tab” result?

9 14848

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IBM SQL PLSQL Interview Questions

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can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?


Write the stack overflow condition.


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Explain the main purpose of an airspeed indicator in an aircraft?


please send me bhel questions on


What is the importance of work items in blue prism?