t sql null or empty string
select * from vendor
where isnull(vendor_email,'') = ''t sql null or empty string
select * from vendor
where isnull(vendor_email,'') = ''sql if empty then
SELECT COALESCE(NULLIF(SomeColumn,''), ReplacementColumn)
FROM SomeTablesql check for null and empty string
IF ISNULL(@param) OR @param = '' THEN doSomething...Copyright © 2021 Codeinu
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