Question

我遇到了一个问题，我想在使用派生表的表中添加一列。我最终希望能够使用while循环填充此列。但是，当我将列添加到表时，我收到以下错误：找不到对象“TEST”，因为它不存在或您没有权限。我有权限，但我不明白为什么在没有添加“ALTER TABLE TEST ADD THEMEVALUE INT（50）”行项目的情况下脚本执行时没有错误的错误提示我。

以下是我的代码：

DECLARE @weeksPriorToConversion INT
DECLARE @periodenddate VARCHAR(50)

SET @weeksPriorToConversion = 5
SET @periodenddate = '2016-10-26'

SELECT TEST.[Casino]
FROM   (SELECT C.Casino                                       AS 'Casino',
               TML.ID                                         AS 'ID',
               TML.[Themes or Game Titles]                    AS 'Theme',
               COUNT(DISTINCT SM.[Serial Number])             AS 'Title Count',
               SUM(SMD.[StandardizedCasinoHoldv2]) / SUM(CASE
                                                           WHEN SMD.[StandardizedCasinoHoldv2] <> 0
                                                             THEN 7
                                                           ELSE NULL
                                                         END) AS 'Casino Index'
        FROM   [slot machine data] SMD
               INNER JOIN [slot machines] SM
                 ON SM .ID = SMD.[serial number]
               INNER JOIN [slot machine configurations] SMC
                 ON SM .ID = SMC.[serial number]
                    AND SMC. [Configuration Starting Date] = (SELECT MAX([Configuration Starting Date]) AS Expr1
                                                              FROM   [Slot Machine Configurations] AS SMC2
                                                              WHERE  ( [Serial Number] = SM.ID )
                                                                     AND ( [Configuration Starting Date] <= SMD.[data calendar start date] ))
               INNER JOIN [casino] C
                 ON C .ID = SMC.[casino where slot in operation]
               INNER JOIN [Themes Master List] TML
                 ON TML.ID = SMC.[Theme or Game Title]) AS TEST

ALTER TABLE TEST
  ADD THEMEVALUE INT(50);

Answer 1

没有INT(50)数据类型，您无法向派生表添加列。派生表只是在查询中封装逻辑表表达式。它们不会创建任何实际的表格。

可能你想要一个#temp表。您可以使用SELECT ... INTO创建一个。

下面创建一个名为#test的人。选择列表包含THEMEVALUE列，因此无需单独添加。

SELECT C.Casino                                       AS [Casino],
       TML.ID                                         AS [ID],
       TML.[Themes or Game Titles]                    AS [Theme],
       COUNT(DISTINCT SM.[Serial Number])             AS [Title Count],
       SUM(SMD.[StandardizedCasinoHoldv2]) / SUM(CASE
                                                   WHEN SMD.[StandardizedCasinoHoldv2] <> 0
                                                     THEN 7
                                                   ELSE NULL
                                                 END) AS [Casino Index],
       CAST(NULL AS INT)                              AS THEMEVALUE
INTO   #test
FROM   [slot machine data] SMD
       INNER JOIN [slot machines] SM
         ON SM .ID = SMD.[serial number]
       INNER JOIN [slot machine configurations] SMC
         ON SM .ID = SMC.[serial number]
            AND SMC. [Configuration Starting Date] = (SELECT MAX([Configuration Starting Date]) AS Expr1
                                                      FROM   [Slot Machine Configurations] AS SMC2
                                                      WHERE  ( [Serial Number] = SM.ID )
                                                             AND ( [Configuration Starting Date] <= SMD.[data calendar start date] ))
       INNER JOIN [casino] C
         ON C .ID = SMC.[casino where slot in operation]
       INNER JOIN [Themes Master List] TML
         ON TML.ID = SMC.[Theme or Game Title]

找不到对象'TABLE'，因为它不存在或您没有权限

1 个答案: