Question

我有两张桌子：

    dbo.Events

    EventID               EventName            Location
    1                     Birthday Party       2
    2                     Wedding              1

    dbo.EventsLocation

    Location    LocationName
    1           Room 1
    2           Room 2

我想创建一个返回以下内容的SQL查询

    Birthday Party    Room 2
    Wedding           Room 1

Answer 1

SELECT
  Events.EventName AS EventName,
  EventsLocation.LocationName AS LocationName
FROM
  Events
  INNER JOIN EventsLocation ON Events.Location=EventsLocation.Location
(WHERE ...)
;

Answer 2

加入表格：

select e.EventName, l.LocationName
from Events e
inner join EventsLocation l on l.Location = e.Location

Answer 3

Select e.eventname, l.locationname
From events e
Left join eventslocation l
On e.location = l.location

Answer 4

select 
      e.eventName,
      el.locationName
   from
      Events e
         join EventsLocation el
            on e.location = el.location

Answer 5

SELECT E.EventName,EL.LocationName 
FROM dbo.Events E 
INNER JOIN EventsLocation EL
ON E.Location=EL.Location

SQL查询，它根据另一个表中的id查找返回值

5 个答案: