Sounds like you want to use 

INSERT INTO table (a,b,c) VALUES (1,2,3)
  ON DUPLICATE KEY UPDATE c=c+1;

[download]
http://dev.mysql.com/doc/refman/5.7/en/insert-on-duplicate.html

In reply to Re: Loader script - Design question by Anonymous Monk
in thread Loader script - Design question by artanisace

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