C. 使用 OUTPUT 参数
以下示例使用 OUTPUT 参数将由 SELECT 语句生成的结果集存储于 @SQLString 参数中。然后将执行两个使用 OUTPUT 参数值的 SELECT 语句。

复制代码
USE AdventureWorks;
GO
DECLARE @SQLString nvarchar(500);
DECLARE @ParmDefinition nvarchar(500);
DECLARE @SalesOrderNumber nvarchar(25);
DECLARE @IntVariable int;
SET @SQLString = N'SELECT @SalesOrderOUT = MAX(SalesOrderNumber)
FROM Sales.SalesOrderHeader
WHERE CustomerID = @CustomerID';
SET @ParmDefinition = N'@CustomerID int,
@SalesOrderOUT nvarchar(25) OUTPUT';
SET @IntVariable = 22276;
EXECUTE sp_executesql
@SQLString,
@ParmDefinition,
@CustomerID = @IntVariable,
@SalesOrderOUT = @SalesOrderNumber OUTPUT;
-- This SELECT statement returns the value of the OUTPUT parameter.
SELECT @SalesOrderNumber;
-- This SELECT statement uses the value of the OUTPUT parameter in
-- the WHERE clause.
SELECT OrderDate, TotalDue
FROM Sales.SalesOrderHeader
WHERE SalesOrderNumber = @SalesOrderNumber;