MySQL CONCAT_WS() Function

Add several expressions together, and add a "-" separator between them:

SELECT CONCAT_WS("-", "SQL", "Tutorial", "is", "fun!") AS ConcatenatedString;

Definition and Usage

The CONCAT_WS() function adds two or more expressions together with a separator.

Note: Also look at the CONCAT() function.

CONCAT_WS( separator, expression1, expression2, expression3,...)

Parameter	Description
separator	Required. The separator to add between each of the expressions. If separator is NULL, this function returns NULL
expression1, expression2, expression3, etc.	Required. The expressions to add together. An expression with a NULL value will be skipped

Works in:	From MySQL 4.0

Add three columns (and add a space between them) into one "Address" column:

SELECT CONCAT_WS(" ", Address, PostalCode, City) AS Address
FROM Customers;