Appearance
记录
新增记录。
INSERT INTO products (name, price, description) VALUES (N'苹果', '15', N'美味');
INSERT INTO products (name, price, description) VALUES (N'香蕉', '20', N'香气');
INSERT INTO products (name, price, description) VALUES (N'菠萝', '25', N'可口');
GO查询记录。
SELECT * FROM products;
GO| id | name | price | description |
|---|---|---|---|
| 1 | 苹果 | 15.0000 | 美味 |
| 2 | 香蕉 | 20.0000 | 香气 |
| 3 | 菠萝 | 25.0000 | 可口 |
(3 rows affected)修改记录。
UPDATE products SET price = '28' WHERE id = 3;
GO(1 rows affected)查询记录。
SELECT * FROM products;
GO| id | name | price | description |
|---|---|---|---|
| 1 | 苹果 | 15.0000 | 美味 |
| 2 | 香蕉 | 20.0000 | 香气 |
| 3 | 菠萝 | 28.0000 | 可口 |
(3 rows affected)删除记录
DELETE FROM products WHERE id = 3;
GO(1 rows affected)查询记录。
SELECT * FROM products;
GO| id | name | price | description |
|---|---|---|---|
| 1 | 苹果 | 15.0000 | 美味 |
| 2 | 香蕉 | 20.0000 | 香气 |
(2 rows affected)