関連ワード:  sql delete duplicate rows and keep one    sql delete duplicate rows keep one postgresql    sql delete duplicate rows but keep one without primary key    sql delete duplicate rows but keep one oracle    sql delete duplicate records keep one    sql query to delete duplicate records and keep one    sql server delete duplicate rows keep one    oracle sql delete duplicate rows keep one    sql server delete duplicate rows but keep one    ms sql delete duplicate rows but keep one  
結果 : sql delete duplicate rows and keep one