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数据库操作技能7
2022-07-26 08:41:00 【wuyunbilige66】
1.创建test数据库
2.在test数据库中创建emp表

3. 向emp表中添加记录
4.查询表中所有内容

5.查询表中姓名是张三的所有消息记录
6.查询表中姓名是三个字组成的所有员工的ename,job,sal字段的对应信息
7.查询表中empno字段从1004至1008所有员工的记录
8.查询表中所有job字段是文员并且姓名是黄盖的员工的所有信息

9.查询表中在2001年以后入职的员工信息
10.查询表中奖金(COMM)是NULL的员工信息
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原文链接:https://blog.csdn.net/wuyunbilige66/article/details/125982450
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