同一张表多条件join

[rodsgo]

因为我的dbo.BS1_BaseCode表是根据BaseCodeType='fhfsb'这个状态出结果的
现在我需要BS1_BaseCode表中三个字段的值，但这三个字段要根据BaseCodeType字段的值来分别区分，表现如下（下图是错误的）但是我是要根据状态出结果，不知道SQL应该怎么写

SELECT *,dbo.LD3_Consign.BillNo as abillno FROM dbo.LD3_Consign left Join dbo.BS1_BaseCode on dbo.LD3_Consign.TrafficType=dbo.BS1_BaseCode.BaseCode and BaseCodeType='fyfsb' left Join dbo.BS1_BaseCode on dbo.LD3_Consign.PassType=dbo.BS1_BaseCode.BaseCode and BaseCodeType='fhfsb' WHERE DocNo='$seach1'

[北京不不]

请表述清楚点。

[rodsgo]

我有一个A表，平时是根据它的BaseCodeType字段的值来确定对应的BaseCode字段的值，也就好像这个连接查询语句

left Join dbo.BS1_BaseCode on dbo.LD3_Consign.TrafficType=dbo.BS1_BaseCode.BaseCode and BaseCodeType='fyfsb' 

现在我是要在同一个查询里取BaseCodeType字段的三个值来进行连接查询

left Join dbo.BS1_BaseCode on dbo.LD3_Consign.TrafficType=dbo.BS1_BaseCode.BaseCode and BaseCodeType='fyfsb' 
left Join dbo.BS1_BaseCode on dbo.LD3_Consign.PassType=dbo.BS1_BaseCode.BaseCode and BaseCodeType='fhfsb'

SQL应该怎么写才对

[blue44sky]

SELECT B.*,dbo.LD3_Consing.BillNo as abillno FROM dbo.LD3_Consign A 
LEFT JOIN Join dbo.BS1_BaseCode B ON A.trafficType = B.BaseCode 
WHERE B.BaseCodeType='fyfsb' AND A.TrafficType = A.PassType AND DocNo='$seach1'

应该是这样的