练习一(列表)
DEPARTMENTS.DEPARTMENT_ID,
DEPARTMENTS.DEPARTMENT_NAME,
DEPARTMENTS.MANAGER_ID,
DEPARTMENTS.LOCATION_ID
FROM
DEPARTMENTS
练习二 邮件标签
SELECT EMPLOYEES.FIRST_NAME,
EMPLOYEES.LAST_NAME,
LOCATIONS.CITY,
LOCATIONS.STREET_ADDRESS,
LOCATIONS.POSTAL_CODE,
LOCATIONS.STATE_PROVINCE
FROM EMPLOYEES
INNER JOIN DEPARTMENTS
ON DEPARTMENTS.DEPARTMENT_ID = EMPLOYEES.DEPARTMENT_ID
AND EMPLOYEES.EMPLOYEE_ID = DEPARTMENTS.MANAGER_ID
INNER JOIN LOCATIONS
ON LOCATIONS.LOCATION_ID = DEPARTMENTS.LOCATION_ID
练习三格式信件
SELECT
JOBS.JOB_ID,
EMPLOYEES.FIRST_NAME,
EMPLOYEES.LAST_NAME,
EMPLOYEES.EMPLOYEE_ID
FROM
EMPLOYEES
INNER JOIN JOBS
ON
JOBS.JOB_ID = EMPLOYEES.JOB_ID
可以在加入新的内容
查看新加入的内容
翻页查看
练习四(手动创建)
SELECT
DEPARTMENTS.DEPARTMENT_ID,
DEPARTMENTS.DEPARTMENT_NAME,
DEPARTMENTS.LOCATION_ID
FROM
DEPARTMENTS
在导入一组数据
SELECT
EMPLOYEES.FIRST_NAME,
EMPLOYEES.LAST_NAME,
EMPLOYEES.SALARY,
EMPLOYEES.JOB_ID
FROM
EMPLOYEES
它会把两组数据上下分开显示
练习五(左边分组)
SELECT
EMPLOYEES.EMPLOYEE_ID,
EMPLOYEES.FIRST_NAME,
EMPLOYEES.LAST_NAME,
EMPLOYEES.SALARY,
EMPLOYEES.DEPARTMENT_ID,
EMPLOYEES.JOB_ID
FROM
EMPLOYEES
把部门进行分组
这两个按键的用法
修改行间格
修改job ID显示的位置
查看结果
在给job_id进行分组显示
把这个拉上面
在修改在这样
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