删除记录

删除记录通过DELETE语句实现，其（单表删除）语法为：

DELETE FROM TABLE  [ WHERE WHERE_cONditiON ]

说明：
DELETE语句删除记录，并且返回被删除的行数(记录数)；
如果省略WHERE条件，则删除全部记录；

-- 删除db02表中,姓名(name)是我吃西红柿的记录
DELETE FROM db02 WHERE name='我吃西红柿';
SELECT * FROM db02;

-- 删除db02表中,编号(id)是1号的记录
DELETE FROM db02 WHERE id=1;
SELECT * FROM db02;

-- 删除db02表中,全部数据
DELETE FROM db02;
SELECT * FROM db02;