我觉得我是如此亲密,我似乎无法弄清楚如何使用存储过程从SQL Server获取GUID。它要么不返回值,要么我没有以正确的方式调用输出。
看了两天的文档后,我想到了:
DROP PROCEDURE IF EXISTS create_product
GO
CREATE PROCEDURE create_product
(@Name VARCHAR(255),
@Price DOUBLE PRECISION,
@Image VARCHAR(255),
@Free_Shipping BIT,
@Description VARCHAR(MAX),
@Shipping_Id UNIQUEIDENTIFIER,
@PRODUCT_ID UNIQUEIDENTIFIER OUTPUT)
AS
SELECT @PRODUCT_ID = NEWID();
DECLARE @PRODUCT_DETAIL_ID UNIQUEIDENTIFIER;
SET @PRODUCT_DETAIL_ID = NEWID();
INSERT INTO Product (product_id, product_name, product_price, product_image,
product_free_shipping, product_detail_id)
VALUES (@PRODUCT_ID, @Name, @Price, @Image,
@Free_Shipping, NULL);
INSERT INTO ProductDetail (detail_id, detail_description, detail_product_id,
detail_product_meta_id, detail_shipping_id)
VALUES (@PRODUCT_DETAIL_ID, @Description, @PRODUCT_ID,
NULL, @Shipping_Id);
UPDATE Product
SET product_detail_id = @PRODUCT_DETAIL_ID
WHERE product_id = @PRODUCT_ID;
PRINT @PRODUCT_ID
GO
DECLARE @PID UNIQUEIDENTIFIER;
EXEC create_product 'Name8', 10.79, 'Image8', 0, 'Description of the eigth', '0511DE6D-F448-471D-B1B2-11C19E991927', @PID OUTPUT
GO
PRINT @PID
我仅在末尾添加了PRINT
以便进行调试,以确保确实设置了我的值。我得到的错误是:
137级2号线60行137消息
必须声明标量变量“ @PID”。
似乎很奇怪
答案 0 :(得分:5)
变量的作用域是批次,GO
是批次分隔符。删除它。
DECLARE @PID UNIQUEIDENTIFIER;
EXEC create_product 'Name8', 10.79, 'Image8', 0, 'Description of the eigth', '0511DE6D-F448-471D-B1B2-11C19E991927', @PID OUTPUT
PRINT @PID