单词 join 处或附近的语法错误

Question

我使用以下 Select 语句来检索和计算多个表中每个字段的总数。但是，当执行该语句时，我收到错误“单词 join 处或附近的语法错误”

任何帮助将不胜感激

询问：

Select CompanyStatus,Companyname,
        INNER JOIN Company on usersincompany.companyID=company.companyID,
                INNER JOIN company on users.companyID=Company.companyID,
                 INNER JOIN usersincompany on users.userid=usersincompany.userid,
                INNER JOIN users on userstatus.userstatudid=users.userstatusid,
                INNER JOIN users on project.companyid=users.companyid,
                INNER JOIN users on usersession.userid=users.userid,
                INNER JOIN project on template.projectid=project.projectid,
                INNER JOIN project on merchendisingarea.projectid=project.projectid,
                 INNER JOIN merchendisingarea on publishstatus.publishstatusid=merchendisingarea.publishstatusid,
             INNER JOIN template on merchendisingmodule.templateid=template.templateid,
        INNER JOIN company on companyaccountclassification.classificationtypeid=company.classificationtypeid,
sum(distinct users.userid) as TotalUsers,
sum(case when users.userstatusid =2 then 1 else 0 end) as Activeusers,
sum(case when users.userstatusid =3 then 1 else 0 end) as SuspendedUsers,
sum(distinct usersessionid) as TotalLogin,
sum(distinct merchendisingmoduleid) as CurrentModules,
count( merchendisingmodule.createddate) as Modulescreated,
count( merchendisingmodule.updateddate) as Modulesupdated,
sum(distinct merchendisingareaid) as Currentareas,
count( merchendisingarea.createddate) as AreasCreated,
count( merchendisingarea.updateddate) as Areasupdated,
sum(case when publishingstatus.publishstatusid =1 then 1 else 0 end) as SuccessPublished,
sum(case when publishingstatus.publishstatusid =3 then 1 else 0 end) as FailedPublished  

 from users,company,merchendisingmodule,merchendisingarea,publishingstatus, usersession       group by companystatus, companyname

Answer 1

为什么每个连接之间有“,”？不需要逗号！

可以这么说：

    SELECT <COLUMNS> 
    FROM <TABLE1> 
    INNER JOIN <TABLE2> ON <JOIN FIELDS>
    INNER JOIN <TABLE3> ON <JOIN FIELDS>
    WHERE <FILTER CONDITIONS>