Which is better?
1)A cursor that loop 30000 record and perform update one by one
2)Create a script that has 30000 update command
thanks
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Which is better?
1)A cursor that loop 30000 record and perform update one by one
2)Create a script that has 30000 update command
thanks
Both should take about the same time, mainly subject to how the CURSOR is declared.
Reason? You have 30,000 individual updates which is usually the main factor
Note that 30,000 individual UPDATES in one batch will probably fail because of batch size and compile time anyway…
SQL is a set based language and you can most likely do a single UPDATE to update all rows in one go. If you can’t, it is because of 2 reasons
With more information (the SQL and logic) we could help you more…