Question

我们在同一个视图定义中有四个度量值，每个量度引用相同的度量描述查找表。我们的问题是我们想要对这个视图进行模式绑定和索引。我们尝试使用别名以及重复连接到查找表的同义词。我们仍然无法将索引放在视图上，因为这些是“自连接”，或者因为模式绑定对象或约束表达式中的同义词无效。任何帮助或建议表示赞赏。

ALTER VIEW [dbo].[VPLAN_SEG_SYNtst] WITH SCHEMA BINDING 
AS 
SELECT DBO.PLAN_SEG.PLAN_SEG_ID, DBO.PLAN_SEG.PLAN_SEG_DESC, 
    DBO.PLAN_SEG.PLAN_ITEM_ID, DBO.SEG_SL_MEAS.SL_MEAS_DESC, 
    DBO.SEG_EST_SL_MEAS.SL_MEAS_DESC AS EST_SL_MEAS_DESC 
FROM DBO.PLAN_SEG 
INNER JOIN DBO.SEG_SL_MEAS 
   ON DBO.PLAN_SEG.CLIENT_ID = DBO.SEG_SL_MEAS.CLIENT_ID 
   AND DBO.PLAN_SEG.SEG_SL_MEAS_SYS_ID = DBO.SEG_SL_MEAS.SL_MEAS_SYS_ID 
INNER JOIN DBO.SEG_EST_SL_MEAS 
   ON DBO.PLAN_SEG.SEG_EST_SL_MEAS_SYS_ID = DBO.SEG_EST_SL_MEAS.SL_MEAS_SYS_ID 
   AND DBO.PLAN_SEG.CLIENT_ID = DBO.SEG_EST_SL_MEAS.CLIENT_ID 
GO

错误：

ERROR Msg 2788, Level 16, State 1, Procedure VPLAN_SEG_SYNtst, Line 5 
    Synonyms are invalid in a schemabound object or a constraint expression.

CREATE UNIQUE CLUSTERED INDEX idx_PLAN_SET_TST 
    ON VPLAN_SEG_TST (PLAN_SEG_ID) 
ERROR Msg 1947, Level 16, State 1, Line 1 Cannot create index on view 
    "SLHUB.dbo.VPLAN_SEG_TST". The view contains a self join on "SLHUB.dbo.ZSL_MEAS".

Answer 1

为了在视图上放置索引，它必须是模式绑定的。有关其他要求，请参阅http://msdn.microsoft.com/en-us/library/ms191432.aspx。

同义词或别名将不允许我们将模式绑定或索引视图

1 个答案: