SQL左外连接语法错误

Question

我试图运行使用左外连接的查询但我不断收到语法错误.我不确定是什么造成的.

 SELECT employee.emp_num, employee.emp_lname, pilot.pil_license
 FROM employee LEFT OUTER JOIN pilot
 WHERE employee.emp_num = pilot.emp_num;

Answer 1

我猜你的错误是"关键字'附近的语法不正确'.".它应该被重写:

SELECT employee.emp_num, employee.emp_lname, pilot.pil_license
FROM employee 
       LEFT OUTER JOIN pilot ON employee.emp_num = pilot.emp_num;