Adding strings in mysql

Can any one help me in knowing the equivalent syntax for

SET @xx = 'data'+ CURDATE() +'.txt'` 

...in MySQL? Basically I want t开发者_运维百科o join a string and a sys function.

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You have to CAST date as CHAR

SELECT CONCAT(  'data', CAST( CURDATE( ) AS CHAR ) ,  '.txt' )