Question

I am struggling now in order to automatize my tiny backup system. I managed to gather some piece of code but I cannot make it.

SET @sql_text = 
   CONCAT (
   "SELECT * FROM commandes INTO OUTFILE 'Y:/folder/Archives/BDD-commandes-CSV"
   , DATE_FORMAT( NOW(), '%Y%m%d')
   , "commandes.csv'"
);

PREPARE s1 FROM @sql_text;

CREATE EVENT BackUpCSV
ON SCHEDULE EVERY 1 HOUR
STARTS CURRENT_TIMESTAMP + INTERVAL 1 DAY
ENDS CURRENT_TIMESTAMP + INTERVAL 1 YEAR
DO
  BEGIN
    EXECUTE s1;
  END |

DROP PREPARE s1;

Here is what i tried to do. An error is spotted at line 7 where it is actually a blank line (‘#1064 – You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ” at line 7’)

I would be grateful to get this help. thx

Answer 1

There is all about delimiter. Here is the version which is fine to compile:

SET @sql_text = 
   CONCAT (
   "SELECT * FROM commandes INTO OUTFILE 'Y:/folder/Archives/BDD-commandes-CSV"
   , DATE_FORMAT( NOW(), '%Y%m%d')
   , "commandes.csv'"
);

PREPARE s1 FROM @sql_text;

delimiter |

CREATE EVENT BackUpCSV
ON SCHEDULE EVERY 1 HOUR
STARTS CURRENT_TIMESTAMP + INTERVAL 1 DAY
ENDS CURRENT_TIMESTAMP + INTERVAL 1 YEAR
DO
  BEGIN
    EXECUTE s1;
  END |

delimiter ;

DROP PREPARE s1;

Also, I recommend to add drop event if exists BackUpCSV |

ps. I’m not sure this script will work