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What is the difference between WHERE AND IN?
OR
1. SELECT * FROM EMPLOYEE WHERE EMPID=123
2. SELECT * FROM EMPLOYEE WHERE EMPID IN (123)
WHAT IS THE DIFFERENCE?
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Answer Posted / saiteja
In the case of where clause it displays single row,or operator can be placed in where clause in oreder to extend rows.
In IN operator at a time we can place empid multiple times but they must be unique.
ex:
(
select * from emp
where empid=123
);
By using OR operator:
(
select * from emp
where empid=123 or empid=234
);
By using IN operator:
(
select * from emp
where empid IN(123)
);
accordidg to the question the output will be same in both thae cases..
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