问题
Im writing sql query and i have issue which i cannot fix.
I'm trying this:
CREATE TABLE a
AS
WITH cteCandidates (Miejscowosc, Ulica, NrDomu, KodPocztowy)
AS
(
SELECT Miejscowosc, Ulica, NrDomu, KodPocztowy
FROM Gimnazja
INTERSECT
SELECT Miejscowosc, Ulica, NrDomu, KodPocztowy
FROM SzkolyPodstawowe
)
Select
e.Lp as 'Gimnazja',
s.Lp as 'Szkoly Podstawowe'
FROM
Gimnazja AS e
INNER JOIN cteCandidates AS c
ON e.Miejscowosc = c.Miejscowosc AND e.Ulica = c.Ulica AND e.NrDomu = c.NrDomu AND e.KodPocztowy = c.KodPocztowy
INNER JOIN SzkolyPodstawowe s
ON s.Miejscowosc = e.Miejscowosc AND s.Ulica = e.Ulica AND s.NrDomu = e.NrDomu AND s.KodPocztowy = e.KodPocztowy
Order By 'Gimnazja'
And errors which i get:
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'AS'.
Msg 319, Level 15, State 1, Line 3
Incorrect syntax near the keyword 'with'. If this statement is a common table expression, an xmlnamespaces clause or a change tracking context clause, the previous statement must be terminated with a semicolon.
And i don't know why. I think that my query is proper but clearly not, and i don't understand why.
回答1:
Perhaps you want:
WITH cteCandidates (...)
SELECT
e.Lp as 'Gimnazja',
s.Lp as 'Szkoly Podstawowe'
INTO a -- < -- table created here
FROM
Gimnazja AS e
INNER JOIN ...;
回答2:
Are you trying to create a view? Then it'd work...
回答3:
CREATE TABLE is used to define a table schema. The WITH keyword is used to define a CTE retrieval of data. These are two completely different operations.
If you need a table within your SQL look at http://msdn.microsoft.com/en-us/library/ms174979.aspx to see the syntax for defining it. You then may populate it with INSERT but that's highly unlikely to be from a CTE ( see below)
Usually with CTEs you don't need to insert the data into a table; in the statement immediately after it you can just use the data retrieved as the table has been temporarily defined and populated for you automatically.
A CTE can be used to define a VIEW - see Create view based on hierarchy / used of CTE for an example
来源:https://stackoverflow.com/questions/9429503/create-table-as-with