coalesce

coalesce

description

Syntax

coalesce(expr1, expr2, ...., expr_n)

Returns the first non empty expression in the parameter (from left to right)

example

mysql> select coalesce(NULL, '1111', '0000');
+--------------------------------+
| coalesce(NULL, '1111', '0000') |
+--------------------------------+
| 1111                           |
+--------------------------------+

keywords

COALESCE