mysql ifnull
##syntax:
SELECT IFNULL(col_with_null_value, default_value);
##you can see the result select with the string NA where the document is null:
SELECT IFNULL(user_document_id, 'NA');mysql ifnull
##syntax:
SELECT IFNULL(col_with_null_value, default_value);
##you can see the result select with the string NA where the document is null:
SELECT IFNULL(user_document_id, 'NA');Copyright © 2021 Codeinu
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