From 879801d756d4c444d53050dc5cf52cca9f1347cf Mon Sep 17 00:00:00 2001 From: xuxin <840198532@qq.com> Date: Sun, 11 Oct 2026 11:30:49 +0800 Subject: [PATCH] javaEEday07-DML-SQL-Delete --- mysql-day02.sql | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/mysql-day02.sql b/mysql-day02.sql index 5e6cfc8..8ce0b16 100644 --- a/mysql-day02.sql +++ b/mysql-day02.sql @@ -49,4 +49,12 @@ values update tb_emp set name = '张四' where id = 1; update tb_emp set name = '张四' ; -- 2. 将 tb_emp 表的所有员工的入职日期更新为 '2010-01-01' -update tb_emp set entrydate='2010-01-01',update_time=now(); \ No newline at end of file +update tb_emp set entrydate='2010-01-01',update_time=now(); + + +-- DML : 删除数据 - delete +-- 1. 删除 tb_emp 表中 ID为1的员工 +delete from tb_emp where id = 1; + +-- 2. 删除 tb_emp 表中的所有员工 +delete from tb_emp; \ No newline at end of file