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In EMP table, for those emp whose Hiredate is same, update
their sal by "sal+500" or else for others keep the sal as it
is, how to do it by SQL query
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Answer Posted / sanjay gupta
Hi Srinu,
you check the query once again..Query is not wrong..
UPDATE emp
SET sal=sal+500
WHERE hiredate IN (SELECT hiredate
FROM emp
HAVING COUNT(*)>1
GROUP BY hiredate
it'll give the same result whether we write count(*) or
count(hiredate)..
But I agree but its better to give count(hiredate)instead of
COUNT(*)...coz it is easier to understand.
| Is This Answer Correct ? | 2 Yes | 1 No |
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