Question

我需要来自表工作者的LAST_NAME，JOB_ID，SALARY列，并且作业ID需要为SH_CLERK或SA_REP，而SALARY列不能等于1000,2600,3000,7000,8000或9000

SELECT `LAST_NAME`, `JOB_ID`, `SALARY` FROM `workers`
WHERE `JOB_ID` = SH_CLERK OR SA_REP AND `SALARY` != 1000 and 2600 and 3000 and 7000 and 8000 and 9000;

我不知道什么是错的，我在'where子句'错误中得到＃1054 - 未知列'SH_CLERK'。

谢谢！

Answer 1

在字符串周围添加引号。

将多个OR切换为使用IN代替。

SELECT LAST_NAME, JOB_ID, SALARY
  FROM workers
 WHERE JOB_ID IN ('SH_CLERK', 'SA_REP')
   AND SALARY NOT IN (1000, 2600, 3000, 7000, 8000, 9000);

Answer 2

SELECT LAST_NAME, JOB_ID, SALARY
FROM workers
WHERE  JOB_ID IN ('SH_CLERK', 'SA_REP') AND
   SALARY NOT IN (1000, 2600, 3000, 7000,8000, 9000)

Answer 3

假设我是否正确理解了问题，如果job_id是数字数据而SH_CLERK或SA_REP是从其他表中获取的。

`Select last_name, job_id, salary 
 from workers 
 where job_id = (select id from <user table> 
                 where <sh_clerk/sa_rep column name field> like 'SH_CLERK' or 
                       <sh_clerk/sa_rep column name field> like 'SA_REP')
 and SALARY not in(1000, 2600, 3000, 7000, 8000, 9000);`

<user table>是SH_CLERK或SA_REP取自

的表

<sh_clerk/sa_rep column name field>是<user table>

中的列名

SQL表where子句错误

3 个答案: