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CODE EXAMPLE FOR SQL

mysql delete older duplicates

 delete test
   from test
  inner join (
     select max(id) as lastId, email
       from test
      group by email
     having count(*) > 1) duplic on duplic.email = test.email
  where test.id < duplic.lastId;
Source by stackoverflow.com #
 
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Tagged: #mysql #delete #older #duplicates
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