SQL Pivot / unpivot列名和相应的值

Question

我目前有一个返回一行数据的查询。我想将最后的4或5分成一列，旁边有相应的值。

Answer 1

USE UNION

        SELECT peojectID,level_type,'LABOR' as Cost_Type,LABOR as Cost From Table UNION
        SELECT peojectID,level_type,'TRAVEL' as Cost_Type,TRAVEL as Cost From Table UNION
        SELECT peojectID,level_type,'MATERIAL' as Cost_Type,MATERIAL as Cost From Table UNION 
        SELECT peojectID,level_type,'ODCs' as Cost_Type,ODCs as Cost From Table UNION 
        SELECT peojectID,level_type,'FEE' as Cost_Type,FEE as Cost From Table 
        OEDER BY peojectID,level_type

Answer 2

如果您使用的是MSSQL，那么试试这个

   SELECT peojectID,level_type, Cost_type,Cost  
    FROM   
       (SELECT peojectID,level_type, LABOR, TRAVEL, MATERIAL, ODCs, FEE 
       FROM Table) p  
    UNPIVOT  
       (Cost  FOR Cost_type IN   
          (LABOR, TRAVEL, MATERIAL, ODCs, FEE )  
    )AS unpvt;