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MySQL
Asked 8 years ago
24 Sep 2016
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CONCAT VS CONCAT_WS

Want to know differance and pros and cons of CONCAT VS CONCAT_WS , i am dealing with Mysql
Mitul Dabhi

Mitul Dabhi
answered Nov 30 '-1 00:00

CONCAT stand for concat two string or field in the MySql. 


select concat('David','Jason')


Result will be 

DavidJason


CONCAT_WS do same , concating two string or field but you can pass on "Separator" to join with. its like "implode"
Syntax :: CONCAT_WS ("Separator",'String/Field',,,)
Example 

select concat(",",'David','Jason')

it will join two string with seprator ","
so result will be 

David,Jason


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ravi

ravi
answered Nov 30 '-1 00:00

MySQL CONCAT function , concat two or more string into single String.
when MySQL CONCAT_WS function , concat two or more string with separator.

CONCAT 

SELECT concat( ",", 'i', 'am', 'coder' )


result ::
,iamcoder

CONCAT_WS 

SELECT concat_ws( ",", 'i', 'am', 'coder' )


result ::
i,am,coder

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