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Implicit converts for inserts


Implicit converts for inserts

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alex.palmer
alex.palmer
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Hi

do implicit converts in insert statements matter? I talking about converting between char and varchar and differing lengths

I know in Selects they can cause scans instead of seeks, but I can't see any impact for inserts from my limited testing

Is there anything I should know?

Cheers

Alex
GilaMonster
GilaMonster
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The only place where implicit conversions can cause scans is when they happen in the JOIN or WHERE clause of a statement (any statement)

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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