In and Not in operator
i have one lacks records in the table.In this table i want to select the
records whose status is GRADE A and GRADER B NOT GRADE C records
SO
which below query will be fast?In or NOT IN operator
SELECT * FROM GRADE_Details where grade in('GRADE A','GRADE B');
OR
SELECT * FROM GRADE_DETAILS WHERE grade NOT IN('GRADE C');
which one takes less time?
Hi,
did you try comparing the EXPLAIN plan of both the SQL's. Do you have INDEX on the grade field or data with NULL in the GRADE field.
I think IN will be better , but you can only confirm after looking into the explain plan.
thanks
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