时间:2021-07-01 10:21:17 帮助过:5人阅读
SELECT last_name ||‘ is a ‘||job_id AS "Employee Details" FROM employees;
SELECT department_name || q‘[ Department‘s Manager Id: ]‘ || manager_id AS "Department and Manager" FROM departments;
Oracle OCP 官方PPT学习日志 使用 SQL SELECT 语句检索数据 01
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