Linux学习笔记（三）---数据库Mysql安装步骤之数据库练习步骤

1.正确打开数据库，打开连接工具（此步骤出现问题可参考我之前的文章）


2.然后新建一个数据库（我这里建的是testjdbc）



3.点击新建好的数据库，点击新建查询



4.将下列中的语句，复制到空白面板中：CREATE TABLE emp

(empno smallint(4) not null primary key,

ename varchar(10),

job varchar(9),

mgr smallint(4),

hiredate date,

sal float(7, 2),

comm float(7, 2),

deptno tinyint(2)

) engine=innodb charset=utf8;

INSERT INTO emp VALUES (7369, '员工SMITH', 'CLERK', 7902, '1980-12-17', 800, NULL, 20);

INSERT INTO emp VALUES (7499, '员工ALLEN', 'SALESMAN', 7698, '1981-02-20', 1600, 300, 30);

INSERT INTO emp VALUES (7521, '员工WARD', 'SALESMAN', 7698, '1981-02-22', 1250, 500, 30);

INSERT INTO emp VALUES (7566, '员工JONES', 'MANAGER', 7839, '1981-04-02', 2975, NULL, 20);

INSERT INTO emp VALUES (7654, '员工MARTIN', 'SALESMAN', 7698, '1981-09-28', 1250, 1400, 30);

INSERT INTO emp VALUES (7698, '员工BLAKE', 'MANAGER', 7839, '1981-05-01', 2850, NULL, 30);

INSERT INTO emp VALUES (7782, '员工CLARK', 'MANAGER', 7839, '1981-06-09', 2450, NULL, 10);

INSERT INTO emp VALUES (7788, '员工SCOTT', 'ANALYST', 7566, '1982-10-09', 3000, NULL, 20);

INSERT INTO emp VALUES (7839, '员工KING', 'PRESIDENT', NULL, '1981-11-17', 5000, NULL, 10);

INSERT INTO emp VALUES (7844, '员工TURNER', 'SALESMAN', 7698, '1981-09-08', 1500, 0, 30);

INSERT INTO emp VALUES (7876, '员工ADAMS', 'CLERK', 7788, '1983-01-12', 1100, NULL, 20);

INSERT INTO emp VALUES (7900, '员工JAMES', 'CLERK', 7698, '1981-12-03', 950, NULL, 30);

INSERT INTO emp VALUES (7902, '员工FORD', 'ANALYST', 7566, '1981-12-03', 3000, NULL, 20);

INSERT INTO emp VALUES (7934, '员工MILLER', 'CLERK', 7782, '1982-01-23', 1300, NULL, 10);

create table dept

(deptno tinyint(2) primary key,

dname varchar(14),

loc varchar(13)

) engine=innodb charset=utf8;

INSERT IN
9f3c
TO dept VALUES (10, '部门ACCOUNTING', 'NEW YORK');

INSERT INTO dept VALUES (20, '部门RESEARCH',   'DALLAS');

INSERT INTO dept VALUES (30, '部门SALES',      'CHICAGO');

INSERT INTO dept VALUES (40, '部门OPERATIONS', 'BOSTON ');

5.然后全部选中，点击运行：



6.接着刷新数据库，刷新表，就会看到刚才新建好的两个表：


    




7.那么现在就可以根据自己掌握程度进行练习了，这里我先做一个简单示范：



*运行的时候，选中该语句即可*运行结果如下所示：



8.是不是很简单啊！小伙伴们一起练习起来吧