Mahmoud
1.2K posts


@Janpanah2004 انشالله خوب میشه ، توکل کنید به خدا حتما خوب میشه
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@RealBenjizo I think , Count(*) is an aggregate function so return 10
I chose A
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@RealBenjizo The behavior of COALESCE is to return the first non-NULL value, so the result is zero
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@CyberRacheal I chose C , Purging means fully erasing data so nothing from the original remains. Normal delete or overwrite may not be enough.
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@RealBenjizo I think I chose A, because this condition returns all data except rows with NULL values.
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