Question

我想使用我的表变量＆＃34; @ Customers＆＃34;＆＃34; @ Customers.Name＆＃34;等变量，我试过它：Customers.Name或@Customers .Name但都显示错误，请建议我如何使用变量？

CREATE TYPE [dbo].[TableType] AS TABLE(
[CustomerID] [int] NOT NULL,
[Name] [varchar](255) NULL,
[City] [varchar](50) NULL,
[State] [char](2) NULL,
[Zipcode] [varchar](20) NULL
)
GO

ALTER PROCEDURE sp_GetCustomers
AS
BEGIN
DECLARE @Customers AS TableType
INSERT INTO @Customers(CustomerID,Name,City,State,ZipCode)
SELECT C.CustomerID,C.FirstName + ' ' + C.LastName,A.City,A.State,A.ZipCode
FROM Customers C INNER JOIN CustomerAddress A ON C.CustomerID=A.CustomerID
EXEC sp_GetCustomersWithAddresses @Customers

END
go

CREATE PROCEDURE sp_GetCustomersWithAddresses
@Customers TableType READONLY
AS
BEGIN
    SELECT * FROM @Customers where @Customers.Name="XYZ";
END

Answer 1

您应该在查询中使用别名。您的存储过程应如下所示：

CREATE PROCEDURE sp_GetCustomersWithAddresses
@Customers TableType READONLY
AS
BEGIN
    SELECT * FROM @Customers a where a.Name='XYZ';
END

Answer 2

在T-SQL中，您不会以这种方式访问表列名称，就像使用C＃语言一样。

但在你的例子中，我认为它很简单：

Select * From @Customers Where [Name] = 'XYZ'

我在括号中有'Name'，因为它是T-SQL中的保留字。并且T-SQL应该知道[Name]是一个列，因为它知道@Customers的类型是TableType。所以这应该有用。

如何使用传递给另一个存储过程的表的变量？

2 个答案: