sql server 增删改查
时间: 2023-09-25 15:09:46 浏览: 62
SQL Server 是一种关系型数据库管理系统(RDBMS),它支持多种操作,包括增删改查等。以下是 SQL Server 的增删改查语句示例:
增加数据:
INSERT INTO table_name (column1, column2, column3, ...)
VALUES (value1, value2, value3, ...);
例如:
INSERT INTO customers (customer_name, contact_name, city, country)
VALUES ('John Smith', 'Peter Lee', 'New York', 'USA');
删除数据:
DELETE FROM table_name WHERE condition;
例如:
DELETE FROM customers WHERE customer_id = 100;
更新数据:
UPDATE table_name SET column1 = value1, column2 = value2, ... WHERE condition;
例如:
UPDATE customers SET city = 'Los Angeles', country = 'USA' WHERE customer_id = 100;
查询数据:
SELECT column1, column2, ... FROM table_name WHERE condition;
例如:
SELECT customer_name, city FROM customers WHERE country = 'USA';
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