SQL逻辑运算符

Question

什么是非学生,律师或教育工作者的职业？按降序字母顺序列出它们？

SELECT Occupation 
  FROM Viewer 
 WHERE occupation NOT IN 'student,lawyer,educator' 
ORDER BY occupation desc;

我一直在收到错误.我究竟做错了什么？

Answer 1

IN 需要括号括起来的表达式列表:

SELECT Occupation
FROM Viewer
WHERE occupation NOT IN ('student','lawyer','educator')
ORDER BY occupation desc;

请参阅文档IN以查看正确的语法:

在条件