SQL使用oracle SQL上的查询测试外键

假设我有两张桌子

CREATE TABLE Employees (
        Employee_ID number(8),
        Employee_Name varchar2(100) NOT NULL,
        CONSTRAINT pk_EmployeeID PRIMARY KEY(Employee_ID));

CREATE TABLE Drivers(
        Driver_ID number(8) NOT NULL,
        Employee_ID number(8) NOT NULL,
        CONSTRAINT pk_DriverID PRIMARY KEY (Driver_ID),
        CONSTRAINT fk_EmployeeDataTwo FOREIGN KEY (Employee_ID) REFERENCES Employees(Employee_ID));

如何使用查询调用驱动程序中的外键来检查员工列表中的姓名？例如

select employee_name 
from employees 
inner join drivers on employees.employee_name = drivers.employee_name; 

---

哪个不起作用

您需要更改加入条件以使用员工ID列：

---

您需要更改加入条件以使用员工ID列：

---

您需要使用在连接条件下连接两个表的列

Select employee_name from employees
İnner join drivers on employees.employee_id= drivers.employee_id; 

---

您需要使用在连接条件下连接两个表的列

Select employee_name from employees
İnner join drivers on employees.employee_id= drivers.employee_id; 

---

这只需更改其他答案的语法即可：

select employee_name 
from employees e
inner join drivers d 
where e.employee_id = d.employee_id; 

---

这只需更改其他答案的语法即可：

select employee_name 
from employees e
inner join drivers d 
where e.employee_id = d.employee_id;