MySQL實現over partition by（分組后對組內數據排序）（小計 合計）

MySQL實現over partition by（分組后對組內數據排序）

 

 

通過分組聚合GROUP_CONCAT實現

SELECT *,GROUP_CONCAT(別名.相同進行分組 ORDER BY 別名.相同進行分組 DESC ) stocksFROM (SELECT * FROM 表名) 別名GROUP BY 相同進行分組,對分組后數據進行排序    

     SELECT  bd.subject_name,
          IFNULL(bd.parent_id,7)   parent_1id,
      if(isnull(bs.subject_name)=1,'小計',bs.subject_name)  subjectName 
            FROM bf_subject bs
          LEFT JOIN bf_subject bd ON bs.parent_id = bd.subject_id
            where bd.subject_code != ''
          GROUP BY  bd.parent_id,bs.subject_name WITH ROLLUP