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Performance Issue

former_member650190
Discoverer

‎2022 Nov 21 2:13 PM

0 Likes
747

Hi Team,

Can anybody let me know which is better to use parallel cursor or reduce operator for nested loops.

Thanks

Niket

2 REPLIES 2
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FredericGirod
Active Contributor

‎2022 Nov 21 2:21 PM

684

Give your example, performance are always specific case

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Sandra_Rossi
Active Contributor

‎2022 Nov 21 5:11 PM

0 Likes
684

As always, the meaning of "better" depends on the context. If you have a high volume of data, it could be better to use "parallel cursor" on 2 internal tables but the code is less maintainable, and with a low volume of data it could be better to use REDUCE because it's more important to have maintainable code. But of course, there are other factors to consider.

Interview question?