What's the syntax of sub string?
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Answer / lakshma naik
Select * from table_name
where column_name in (select column_name from table_name)
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i have column like below studentid studentname sub1 sub2 sub3 1 aaa 40 70 90 2 bbb 60 80 50 i want to execute every student highest mark in which subject my o/p like below studentid studentname sub3 sub2 1 aaa 90 2 bbb 80
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