SQL Server WITH statement

问题

My goal is to select result from one CTE and insert into other table with another CTE in the same procedure. How to do it?

My error is...

invalid object name xy.

My query is

WITH ds
(
    Select a, b, c 
    from test1    
),
xy
(
    select d, e, f 
    from test2 
    where (uses conditions from ds)    
)
Select * 
from ds  (the result set of ds, am exporting this to csv)

Insert into AuditTest
(
  Select * from xy
)

回答1:

A CTE is only good for one query, but it looks like you can use a CTE in each query:

WITH ds AS
(
  Select a, b, c from test1    
)
Select * from ds  (the result set of ds, am exporting this to csv)


WITH xy AS
(
 select d,e,f from test2 where (uses conditions from test1)    
)
Insert into AuditTest
(
  Select * from xy
)

回答2:

You actually can do both the insert and output the results using the OUTPUT clause to return the inserted rows.

;WITH ds AS
(
  Select a, b, c from test1 
),
xy AS
(
 select d, e, f from test2 where (uses conditions from ds)
)
Insert into AuditTest
output inserted.d, inserted.e, inserted.f
Select d, e, f from xy

or a real test

CREATE TABLE #Test (a int)

;WITH ds AS
(
  Select 0 as a, 1 as b, 2 as c 
),
xy AS
(
 select a as d, b as e from ds
)
Insert into #Test 
OUTPUT inserted.a
Select e from xy

回答3:

You can run the INSERT thusly, you can't run multiple queries after your cte:

;WITH ds AS (  Select a, b, c 
              from test1    
           )
    ,xy AS (  select d,e,f 
              from test2 
              where (uses conditions from test1)    
           )
Insert into AuditTest
Select * 
from xy

In this situation using temporary tables may be beneficial since you'll be re-running a query multiple times otherwise.

来源：https://stackoverflow.com/questions/28725389/sql-server-with-statement

标签

sql

sql-server-2008

stored-procedures