CONCAT(str1,str2,...)

MySQL 8.4

Returns the string that results from concatenating the arguments. May have one or more arguments. If all arguments are nonbinary strings, the result is a nonbinary string. If the arguments include any binary strings, the result is a binary string. A numeric argument is converted to its equivalent nonbinary string form.

Syntax

MYSQL

SELECT CONCAT('My', 'S', 'QL');
'MySQL'
SELECT CONCAT('My', NULL, 'QL');
NULL
SELECT CONCAT(14.3);
'14.3'

Examples

Example

CONCAT() returns NULL if any argument is NULL.

MYSQL

SELECT CONCAT('My', 'S', 'QL');
'MySQL'
SELECT CONCAT('My', NULL, 'QL');
NULL
SELECT CONCAT(14.3);
'14.3'

Example 2

For quoted strings, concatenation can be performed by placing the strings next to each other:

MYSQL

SELECT 'My' 'S' 'QL';
'MySQL'