oracle - ORA-00923 - 在预期的地方找不到 FROM 关键字

Question

我收到此错误消息“未在预期位置找到 FROM 关键字”。我究竟做错了什么？

SELECT department_id
FROM employees
HAVING MIN(salary) < (SELECT MIN(salary)
         WHERE department_id < 60)
GROUP BY department_id;

谢谢你的帮助！

Answer 1

您在该行中缺少一个 from：

SELECT MIN(salary)
         WHERE department_id < 60

它需要是

SELECT MIN(salary) FROM {TABLENAMEHERE}
         WHERE department_id < 60

对于完整的查询：

SELECT department_id
FROM employees
GROUP BY department_id
HAVING MIN(salary) < (SELECT MIN(salary) FROM {TABLENAMEHERE}
         WHERE department_id < 60);