lihanzhi的专栏

原创 SQL server 行列转换

DECLARE @sql VARCHAR(8000)SET @sql=''  --初始化变量@sqlSELECT @sql=@sql+','+dates FROM InOutDoor3 GROUP BY datesorder by dates --变量多值赋值SET @sql=stuff(@sql,1,1,'')--去掉首个','SET @sql='select ids, '+@sql+' fro...