check whether all the emp numbers are indeed unique.
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Answer Posted / nagendra
select empno, count(empno)
from emp
group by empno
having count(empno) > 1;
| Is This Answer Correct ? | 22 Yes | 4 No |
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First round ------------------- - Procedure - Packages - Views - Virtual tables - Can we use dcl with in function? - Joins and few scenarios - Triggers and its type - Pragma, type and its functionality - How to create db link in oracle - Materialized view - How to find duplicate values from table? - Cursor and its functionality - Write a script to display friday and its date from a entire year. - Exception Handling Second round ------------------------ Gave a scenario like. Need to write a function to perform. When user try to change a password. It must not be last five password and a given password can be combination of characters, symbols, upper and lower case.
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