我有两张桌子
100 HL Road Frame HL Road Frame - Black, 58 FR-R92B-58 Black 1431.50 1059.31 Road Frames 183 NULL
101 HL Road Frame HL Road Frame - Red, 58 FR-R92R-58 Red 1431.50 1059.31 Road Frames 183 NULL
102 Sport-100 Sport-100 Helmet, Red HL-U509-R Red 34.99 13.09 Helmets 112 NULL
103 Sport-100 Sport-100 Helmet, Black HL-U509 Black 34.99 13.09 Helmets 112 NULL
104 Mountain Bike Socks Mountain Bike Socks, M SO-B909-M White 9.50 3.40 Socks 132 NULL
和类别:
╔═══════╦═══════════════════╗
║ 1 ║ Bib-Shorts ║
║ 2 ║ Bike Racks ║
║ 3 ║ Bike Stands ║
║ 4 ║ Bottles and Cages ║
║ 5 ║ Bottom Brackets ║
╚═══════╩═══════════════════╝
我正在尝试替换第一个表中的空值,并使用第二个表中的类别ID填充它们,我认为插入语句将无法正常运行我认为不会像我想的那样。
CREATE TABLE PRODUCTCATEGORY
(
categoryID INT IDENTITY(1, 1) CONSTRAINT pk_PRODUCTCATEGORY_category_ID
PRIMARY KEY,
categoryname VARCHAR(50)
)
是表格
ALTER TABLE product
ADD categoryID INT
INSERT INTO product
SELECT categoryID
FROM PRODUCTCATEGORY
我得到的错误是Msg 213,Level 16,State 1,Line 18 列名或提供的值数与表定义不匹配。进行插入
赞赏任何意见。
答案 0 :(得分:0)
你所说的基本上是:
CREATE UNIQUE INDEX unq_pages_staff_3 ON pages_staff(pages_admin_page, pages_admin_type, pages_admin_user);
SQL告诉你的是INSERT INTO product(id, short_name, long_name, model number, color, price,
smaller_price, type_name, type_id, what_does_this_value_even_represent) VALUES
(1,'Bib-Shorts'), (2,'Bike Racks'), (3,'Bike Stands'),
(4,'Bottles and Cages'), (5,'Bottom Brackets');
。
答案 1 :(得分:0)
更改表后,您应该执行UPDATE
UPDATE product P
SET P.categoryID = PC.categoryID
FROM PRODUCTCATEGORY PC
WHERE P.ID = PC.ID
AND P.categoryID IS NULL