Answers for "sql how to check null or empty"

t sql null or empty string

select * from vendor
where isnull(vendor_email,'') = ''

Posted by: Guest on August-17-2020

sql if empty then

SELECT COALESCE(NULLIF(SomeColumn,''), ReplacementColumn)
FROM SomeTable

Posted by: Guest on March-03-2021

sql check for null and empty string

IF ISNULL(@param) OR @param = '' THEN doSomething...

Posted by: Guest on August-19-2020

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