SQL逻辑运算符

Question

哪些职业不是学生，律师或教育工作者？按字母顺序降序列出它们？

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

我一直收到错误。我做错了什么？

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documentation for IN以查看正确的语法：