Question

我有2个sql表表名：代理商包含具有coloumn AgentID的记录

表名为：空缺是正在显示数据ans的表。名为空缺的表有空缺。包含与此类似的值的代理

VacanyID    Company       position        CTC        Candidates        Agents
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
FBVAC001  | HDFC      |  Branch Manager | 4.5  | FBCAN001,FBCAN002| Agent3,Agent4
FBVAC003  | TBNH      |  Branch Manager | 4.5  | FBCAN004,FBCAN005| Agent2,Agent4
FBVAC005  | MMNT      |  Branch Manager | 4.5  | FBCAN008,FBCAN006| Agent3
FBVAC008  | LCFC      |  Branch Manager | 4.5  | FBCAN009,FBCAN023| Agent3,Agent4
FBVAC008  | KOTC      |  Branch Manager | 4.5  | FBCAN009,FBCAN023| Agent5,Agent4

我想运行一个查询，该查询只返回那些包含与表名代理中的agents.AgentID相对应的值的记录。这是迄今为止的查询，但所有它都是那些在空缺中没有多个值的记录.Agents

例如，如果要搜索的值是Agent3，则它应返回rows1,3和4，而只返回第3行。

SELECT
vacancies.VacancyID,
vacancies.Company,
vacancies.`Position`,
vacancies.CTC,
vacancies.Candidates,
vacancies.Agents
FROM vacancies
, agents
WHERE (FIND_IN_SET(vacancies.Agents,agents.AgentID) <> 0)

如何解决这个问题？

Answer 1

我相信你的参数会在FIND_IN_SET中向后反转。该集应该是第二个

FIND_IN_SET(agents.AgentID, vacancies.Agents)

更多信息：http://www.bitbybit.dk/carsten/blog/?p=162

此外，如果您只想查看特定代理，您还需要对其进行过滤，否则您将获得代理和匹配空位的所有可能组合（因此重复行）：

AND Agents.AgentID = 'Agent3'

演示：http://www.sqlfiddle.com/#!2/b4dcb/3

Answer 2

SELECT
  vacancies.VacancyID,
  vacancies.Company,
  vacancies.`Position`,
  vacancies.CTC,
  vacancies.Candidates,
  vacancies.Agents
FROM vacancies,
  agents
WHERE (select
     agents.agentid,
     vacancies.agentid
   from agents
     left join vacancies
       on vacancies.agentid = agents.agentid)
and agents.agentid = 'Agent3'

MySQL查询以逗号分隔值搜索字段的所有记录

2 个答案: