What is trigger and stored procedure in sql?
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Does postgresql run on the cloud?
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if table named a is there and 4 records are there then how to swap (1 and 3) and (2 and 4) records at a time
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one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So my requirement is i want output like SAL --- 1000 2000 3000 it mean i want to delete duplicate rows in the table permanently and i want output in the above formatow should u write query?
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