Posted By

bluecap on 10/15/12

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Last Edited at 10/15/12 01:34pm

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Delete duplicate records in MySQL database

/ Published in: MySQL

Compare a table against itself to remove records where column value(s) are identical.

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DELETE FROM table_name USING table_name, table_name AS vtable 
WHERE (NOT table_name.id = vtable.id) 
AND (table_name.column1 = vtable.column1) 
AND (table_name.column2 = vtable.column2)

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