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concat

concat

Description

Syntax

VARCHAR concat (VARCHAR,...)

Connect multiple strings and return NULL if any of the parameters is NULL

example

mysql> select concat("a", "b");
+------------------+
| concat('a', 'b') |
+------------------+
| ab |
+------------------+

mysql> select concat("a", "b", "c");
+-----------------------+
| concat('a', 'b', 'c') |
+-----------------------+
| abc |
+-----------------------+

mysql> select concat("a", null, "c");
+------------------------+
| concat('a', NULL, 'c') |
+------------------------+
| NULL |
+------------------------+

keywords

CONCAT