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');
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4.4
6
SELECT
contactname, IFNULL(bizphone, homephone) phone
FROM
contacts;
Thank you!
6
4.4
(5 Votes)
0
4.11
9
IF condition1 THEN
statements;
ELSEIF condition2 THEN # OPTIONAL
statements;
ELSE # OPTIONAL
statements;
END IF;
Thank you!
9
4.11
(9 Votes)
0
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