我们通过这种q子形成了一个指数化的观点:
Select Table1_ID, Count_BIG(*) as Table2TotalCount from Table2 inner join
Table1 inner join... where...
Also after creating the view, we set clustered unique index on column Table1_ID.
So View consists of two columns:
Table1_ID
Table2TotalCount
我们有两个问题:
- If we use
Count(1)
orCount_BIG(1)
instead ofCount_BIG(*)
, SQL doesn t allow us to set index on Table1_ID - How can we control the type of second column (
Table2TotalCount
) - SQL give a long nullable type to this column. But we want to set int not nullable type to this column. After creating View, we can t find any way to change column type. Also t-sql we use for creating view, always return int values to Table2TotalCount.