TSQL使字段值成列

Question

我想在数据库上执行一个查询来构建与我拉（使用Developer Express）的数据的图表。 所以我有这个表，我回去跟我目前有：

但我想要做的是要提取的数据字段值的所有mycount的和转弯的实例他们到自己的人口列如下：

这是查询代码：

SELECT 
    'Approval Progress' AS ACTIVITY, 
    CASE STATUS 
     WHEN 0 THEN 'NO ACTION' 
     WHEN 1 THEN 'PENDING' 
     WHEN 2 THEN 'APPROVED' 
     WHEN 3 THEN 'REJECTED' 
     ELSE 'ERROR' 
    END AS APRV, 
    COUNT(*) AS MYCOUNT, 
    4 AS TOT0, 8 AS TOT1, 3 AS TOT2 
FROM 
    IT_PROJAPPROVEWIP AS IT_PROJAPPROVEWIP_1 
GROUP BY 
    STATUS 

谢谢！

Answer 1

一个办法做到这一点是使用上的每个状态的交叉连接：

SELECT * 
FROM 
    (SELECT 'Approval Progress' AS ACTIVITY, 
      CASE STATUS 
       WHEN 0 THEN 'NO ACTION' 
       WHEN 1 THEN 'PENDING' 
       WHEN 2 THEN 'APPROVED' 
       WHEN 3 THEN 'REJECTED' 
       ELSE 'ERROR' 
      END AS APRV, 
      COUNT(*) AS MYCOUNT 
    FROM IT_PROJAPPROVEWIP AS IT_PROJAPPROVEWIP_1 
    GROUP BY STATUS)a 
CROSS JOIN 
    (SELECT COUNT(*) AS Tot0 
    FROM IT_PROJAPPROVEWIP 
    WHERE STATUS = 0) b 
CROSS JOIN 
    (SELECT COUNT(*) AS Tot1 
    FROM IT_PROJAPPROVEWIP 
    WHERE STATUS = 1) c 
CROSS JOIN 
    (SELECT COUNT(*) AS Tot2 
    FROM IT_PROJAPPROVEWIP 
    WHERE STATUS = 2) d 
CROSS JOIN 
    (SELECT COUNT(*) AS Tot3 
    FROM IT_PROJAPPROVEWIP 
    WHERE STATUS = 3) e