Question

我正在测试派生表查询。当我在查询下面运行时，它会显示错误。

`Invalid object name 'result'.`

我真的很惊讶。任何人都可以清楚我怀疑为什么会抛出这个奇怪的错误。

SELECT
  *
FROM (SELECT
  1 AS ID,
  'Mike' AS Name) [result]
WHERE result.ID NOT IN (SELECT
  ID
FROM [result]
WHERE Name = 'Mike')

Answer 1

您无法使用该语法重用派生表使用CTE（公用表表达式）。

with [result] as 
  (SELECT
  1 AS ID,
  'Mike' AS Name) 

SELECT
  *
FROM result
WHERE result.ID NOT IN (SELECT
  ID
FROM [result]
WHERE Name = 'Mike')

无效的对象名称 - 派生表

1 个答案: