I have a code to remove the duplicates in one of my table but I cant seem to be able to ORDER the way mysql select the values.
Here is my initial table: http://img196.imageshack.us/img196/2421/tablesw.jpg
mysql_query("CREATE TABLE new_table as SELECT * FROM test GROUP BY url") mysql_query("DROP TABLE test") mysql_query("RENAME TABLE new_table TO test")
I want to remove the duplicated URL and make sure that it keeps only the value with the higher PR. I tried using the ORDER BY attribute but it doesnt seem to work. The first 3 values with a PR of 0 are always selected and placed in the new table...
The good result should be that the 3 values (a,b,c) with a PR of 6 are found in the final table.
I tried this and it doesnt work:
mysql_query("CREATE TABLE new_table as SELECT * FROM test GROUP BY url ORDER BY pr DESC")
I am looking for a fast way to achieve this because my table have over 200k entries.