sqlserver 关于子查询的优化操作

在对条件需要用到子查询的时候，通常可以通过连接来代替子查询来完成操作，更加高效

SELECT t1.id,t2.columnName,t2.columnType,t1.rownum,t1.cellValue FROM dbo.t_dataPublishDetail t1 
 INNER JOIN dbo.t_dataPublishColumn t2 ON t1.t_dataPublishColumn_id = t2.id AND t2.t_dataPublish_id = 36
 INNER JOIN ( 
 SELECT rownum FROM dbo.t_dataPublishDetail t1 
 INNER JOIN dbo.t_dataPublishColumn t2 ON t1.t_dataPublishColumn_id = t2.id AND  t_dataPublish_id = 36 AND columnType=7
 WHERE t1.cellValue='10000' 
  ) t3 ON  t3.rownum=t1.rownum 
 ORDER BY t1.rownum