将动态 SQL 的结果放入 sql-server 的变量中
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时间：2020-09-01 07:45:01 来源:igfitidea点击:
Getting result of dynamic SQL into a variable for sql-server
提问by Peter Lindholm
Executing dynamic SQL as follows in Stored Procedure:
在存储过程中执行动态SQL如下：
DECLARE @sqlCommand nvarchar(1000)
DECLARE @city varchar(75)
SET @city = 'London'
SET @sqlCommand = 'SELECT COUNT(*) FROM customers WHERE City = @city'
EXECUTE sp_executesql @sqlCommand, N'@city nvarchar(75)', @city = @city
How do I use the count(*) column value as return value in the SP?
如何在 SP 中使用 count(*) 列值作为返回值？
回答by Sage
DECLARE @sqlCommand nvarchar(1000)
DECLARE @city varchar(75)
declare @counts int
SET @city = 'New York'
SET @sqlCommand = 'SELECT @cnt=COUNT(*) FROM customers WHERE City = @city'
EXECUTE sp_executesql @sqlCommand, N'@city nvarchar(75),@cnt int OUTPUT', @city = @city, @cnt=@counts OUTPUT
select @counts as Counts
回答by Brad
You've probably tried this, but are your specifications such that you can do this?
您可能已经尝试过这个，但是您的规格是否可以做到这一点？
DECLARE @city varchar(75)
DECLARE @count INT
SET @city = 'London'
SELECT @count = COUNT(*) FROM customers WHERE City = @city
回答by Ab Bennett
dynamic version
动态版本
ALTER PROCEDURE [dbo].[ReseedTableIdentityCol](@p_table varchar(max))-- RETURNS int
AS
BEGIN
-- Declare the return variable here
DECLARE @sqlCommand nvarchar(1000)
DECLARE @maxVal INT
set @sqlCommand = 'SELECT @maxVal = ISNULL(max(ID),0)+1 from '+@p_table
EXECUTE sp_executesql @sqlCommand, N'@maxVal int OUTPUT',@maxVal=@maxVal OUTPUT
DBCC CHECKIDENT(@p_table, RESEED, @maxVal)
END
exec dbo.ReseedTableIdentityCol @p_table='Junk'
回答by Stefano Pedone
this could be a solution?
这可能是一个解决方案？
declare @step2cmd nvarchar(200)
DECLARE @rcount NUMERIC(18,0)
set @step2cmd = 'select count(*) from uat.ap.ztscm_protocollo' --+ @nometab
EXECUTE @rcount=sp_executesql @step2cmd
select @rcount
回答by CristiC
DECLARE @sqlCommand nvarchar(1000)
DECLARE @city varchar(75)
DECLARE @cnt int
SET @city = 'London'
SET @sqlCommand = 'SELECT @cnt=COUNT(*) FROM customers WHERE City = @city'
EXECUTE sp_executesql @sqlCommand, N'@city nvarchar(75)', @city = @city
RETURN @cnt
回答by PaOne
vMYQUERY := 'SELECT COUNT(*) FROM ALL_OBJECTS WHERE OWNER = UPPER(''MFI_IDBI2LIVE'') AND OBJECT_TYPE = ''TABLE''
AND OBJECT_NAME =''' || vTBL_CLIENT_MASTER || '''';
PRINT_STRING(VMYQUERY);
EXECUTE IMMEDIATE vMYQUERY INTO VCOUNTTEMP ;
