[英]Mysql joints is possible?
I have two table one table containing station id and station name, and another table containing id, name, startStationId, endStationId. 我有两个表一个表包含站ID和站名,另一个表包含id,name,startStationId,endStationId。 I know second table's id by using that id i need to fetch all details of second table with station name for corresponding startStationId, endStationId. 我知道第二个表的ID是通过使用该ID我需要获取第二个表的所有详细信息,其中包含相应的startStationId,endStationId的站名。
ex: table1
---------------------------------
slNo staionId staionName
---------------------------------
1 0012 Bangalore ,
2 0014 Chennai ,
3 0015 Mumbai
---------------------------------
Table 2:
------------------------------------------
Id Name startStationId endStationId
-------------------------------------------
123 Dhinesh 0014 0015
-------------------------------------------
For example i know second table id(123).. so i want to fetch all results by using id, result would be. 例如,我知道第二个表id(123)..所以我想通过使用id获取所有结果,结果将是。
Id =>123, Name => Dhinesh, StartStaion =>Chennai , Endstation=>Mumbai. Id => 123,Name => Dhinesh,StartStaion => Chennai,Endstation =>孟买。
How can we write in one single query...? 我们如何在一个查询中写...?
Thanks in advance. 提前致谢。
Try this. 尝试这个。
SELECT t2.Id,t2.name,t1.StationName,t3.StationName
FROM table2 t2
INNER JOIN table1 t1 ON t2.startStationId = t1.stationId
INNER JOIN table1 t3 ON t2.endStationId = t3.stationId
SELECT t2.Id, t2.Name, tstart.stationName , tend.stationName
FROM table2 as t2
INNER JOIN table1 as tstart ON t2.startStationId = tstart.stationId
INNER JOIN table1 as tend ON t2.endStationId = tend.stationId
this should work 这应该工作
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