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 Category : Home > Databases > MySQL     

Find duplicate records query


Use the following SQL statement for finding duplicates in a table. I think this should work
for any relational database, not only MySQL.

SELECT col_name, COUNT(col_name) AS num
FROM table_name
GROUP BY col_name
HAVING (COUNT(col_name) > 1);


 
   This tip was posted as an answer to question: How do I find duplicate records in a table?   
 

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  Details
Tip reference : #80
views : 2951
Added on : 02/16/06
Submited by : h8dk97
 
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