What's the fastest way to update values in MSSQL?

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Manoj Kumar Vishwakarma

MS SQL SERVER DBA Trainer

Consider a table called test which has more than 5 millions rows. Suppose you want to update a column with the value 0, if it that column contains negative value. Let us also assume that there are over 2 million row in that column that has a negative value. The usual way to write the update method...
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Consider a table called test which has more than 5 millions rows. Suppose you want to update a column with the value 0, if it that column contains negative value. Let us also assume that there are over 2 million row in that column that has a negative value. The usual way to write the update method is as shown below: UPDATE test SET col=0 WHERE col<0 read less
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