Question

我需要什么

我想检查某个国家/地区的数据是否应该位于最前面。

这是我的查询语法

此语法中的问题请指出我的错误。

  (case
         when user.linkedinProfile IS NOT NULL or user.country=$country_code
         then 1
         else
            case
                  when user.profile IS NOT NULL or user.country=$country_code
                  THEN 2
                  else
            end

            case
                    when user.country or user.country=$country_code
                    then 3
                    else 4
            end 
        END)as country

我做错了（我使用过case - ＆gt; when-＆gt;然后 - ＆gt; else-＆gt; end）。

但是sql查询在数据库中工作：

    SELECT e0_.metadata AS metadata0, u1_.id AS id1, u1_.linkedin_id AS linkedin_id2, u1_.facebook_id AS facebook_id3, u1_.linkedin_profile AS linkedin_profile4, u1_.profile AS  
    profile5,u1_.country,

  CASE WHEN u1_.linkedin_id <> '' OR u1_.facebook_id <> '' THEN 1 ELSE 0 END AS sclr6, 
  CASE WHEN e0_.edition = 23932 THEN 'current' ELSE 'past' END AS sclr7 ,
          case
            when u1_.linkedin_profile!='' and u1_.country='IN'
            then '1' 
            when u1_.profile!='' and u1_.country='IN'
            then '2'
            when u1_.country and u1_.country='IN'
            then '3'
        else '4'
        END  lower 

      FROM event_visitor e0_, user u1_

    WHERE e0_.user = u1_.id AND e0_.event = 25162 AND e0_.published = 1 GROUP BY 
    e0_.user ORDER BY e0_.edition DESC, sclr6 DESC, e0_.id DESC , u1_.country DESC LIMIT 30 OFFSET 0

我优先考虑查询。

我已从Nested CASE statements in MySQL

获得帮助

喜欢前

  linkedln url (not null) and country ( 1 priority).
  profile (not null) and country (2 priority).
  country (not null) and country( 3 priority).

我找到了解决方案：

              (case
             when (user.linkedinProfile !='' or user.profile !='') and user.country= '$country_code'
              then 1
                when
                user.linkedinProfile<>'' or user.profile!=''
                then 2
                when  user.country='$country_code'
                then 3
            else 4 end)  country

错误：

         PHP Fatal error:  Uncaught exception 'Doctrine\\ORM\\Query\\QueryException' with message 'SELECT  user.country,visitor.metadata,user.id user_id,user.linkedinId,user.facebookId,user.linkedinProfile,user.profile,\n\t\t\t\t(case  when user.linkedinId !='' or user.facebookId !='' then 1 else 0 end) social,\n\t\t\t\t(case  when visitor.edition =23932 then 'current' else 'past' end) edition,\n\t\t\t\t\n\t\t\t\tCASE\n\t\t\t\t     WHEN (user.linkedin_profile IS NOT NULL and user.country='IN' )\n\t\t\t\tTHEN \n\t\t\t\tCASE\n\t\t\t\t     WHEN(user.profile IS NOT NULL and user.country='IN')\n\t\t\t\tTHEN '2' \n\t\t\t        ELSE '3'    \n\t\t\t\tEND\n\t\t\t\tELSE\n\t\t\t\tCASE\n\t\t\t\t    WHEN (user.country and user.country='IN')\n\t\t\t\tTHEN '4'\n\t\t\t\tELSE '5'\n\t\t\t\tEND\n\t\t\t\tEND AS product_total\n\t\t\t\t    FROM Entities\\EventVisitor visitor,Entities\\User user WHERE visitor.user=user.id AND visitor.event=25162 AND visitor.published=1 GROUP BY visitor.user ORDER BY visitor.edition desc, social desc, visitor.id desc' in /home/indiamart/public_html/serve-biztradeshows-com/application/libraries/Doctrine/ORM/Query/QueryExce in /home/indiamart/public_html/serve-biztradeshows-com/application/libraries/Doctrine/ORM/Query/QueryException.php on line 44

嵌套案例不适用于学说

0 个答案: