Используя переменную Table с sp_executesql
У меня есть запрос, который содержит переменную таблицы:
DECLARE @Selects XML ;
SET @Selects='<Selects><Select><Q_ID>1</Q_ID><Q_DESC>nima1</Q_DESC></Select><Select><Q_ID>2</Q_ID><Q_DESC>nima2</Q_DESC></Select><Select><Q_ID>3</Q_ID><Q_DESC>nima3</Q_DESC></Select></Selects>'
DECLARE @QuestionID NVARCHAR(10);
SET @QuestionID='a5';
DECLARE @TblSelect TABLE
(
Q_ID INT,
Q_DESC NVARCHAR(500)
)
INSERT INTO @TblSelect
(
Q_ID,Q_DESC
)
SELECT Q_Select.value('(Q_ID)[1]', 'int') AS 'Q_ID',
Q_Select.value('(Q_DESC)[1]', 'nvarchar(500)') AS 'Q_DESC'
FROM @Selects.nodes('/Selects/Select') AS AllSelects(Q_Select)
DECLARE @Query NVARCHAR(4000);
SET @Query=N'SELECT Q_ID,COUNT(Q_ID) FROM @TblSelect LEFT OUTER JOIN tblbase tb ON @TblSelect.Q_ID = @Col_Select group by Q_ID';
EXECUTE sp_executesql @Query,@TblSelect,@Col_Select
Как передать переменную таблицы в мой запрос?
Ответы
Ответ 1
Здесь приведен пример того, как передать параметр таблицы в sp_executesql
. Переменная должна быть передана readonly
:
if exists (select * from sys.types where name = 'TestTableType')
drop type TestTableType
create type TestTableType as table (id int)
go
declare @t TestTableType
insert @t select 6*7
exec sp_executesql N'select * from @var', N'@var TestTableType readonly', @t
Отправляет Ответ на конечный вопрос о жизни, Вселенной и обо всем.
Ответ 2
Попробуйте тип таблицы
DECLARE @Selects XML ;
SET @Selects='<Selects><Select><Q_ID>1</Q_ID><Q_DESC>nima1</Q_DESC></Select><Select><Q_ID>2</Q_ID><Q_DESC>nima2</Q_DESC></Select><Select><Q_ID>3</Q_ID><Q_DESC>nima3</Q_DESC></Select></Selects>'
DECLARE @QuestionID NVARCHAR(10);
SET @QuestionID='a5';
DECLARE TYPE TblSelect AS TABLE
(
Q_ID INT,
Q_DESC NVARCHAR(500)
)
/* Declare a variable that references the type. */
DECLARE @TblSelect
AS TblSelect ;
INSERT INTO @TblSelect
(
Q_ID,Q_DESC
)
SELECT Q_Select.value('(Q_ID)[1]', 'int') AS 'Q_ID',
Q_Select.value('(Q_DESC)[1]', 'nvarchar(500)') AS 'Q_DESC'
FROM @Selects.nodes('/Selects/Select') AS AllSelects(Q_Select)
DECLARE @Query NVARCHAR(4000);
SET @Query=N'SELECT Q_ID,COUNT(Q_ID) FROM @TblSelect LEFT OUTER JOIN tblbase tb ON @TblSelect.Q_ID = @Col_Select group by Q_ID';
EXECUTE sp_executesql @Query,@TblSelect,@Col_Select