一个表中多个字段对应另一个表的ID(SQL查询)

 A数据表中多个字段对应B数据表的ID,

现在要把B表的其他字段一起查询出来

一、数据表:

 1、SPEED_DETECTION_ROAD

它的 START_POINT_ID 和 END_POINT_ID字段对应下面表的ID,

2、SECTION_INFO

 二、SQL语句:

SELECT 

	section1.SECTION_NAME AS sectionStart,
	section2.SECTION_NAME AS sectionEND
	
  FROM [ZLITS_HCVS].[dbo].[SPEED_DETECTION_ROAD] AS road
  
  inner join [ZLITS_HCVS].[dbo].[SECTION_INFO] AS section1
  on road.START_POINT_ID = section1.SECTION_ID
  
  inner join [ZLITS_HCVS].[dbo].[SECTION_INFO] AS section2
  on road.END_POINT_ID = section2.SECTION_ID

思路:

SPEED_DETECTION_ROAD表有两个字段是SECTION_INFO表的ID,

因此,Inner Join 数据表SECTION_INFO两次

三、查询结果

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转载自www.cnblogs.com/Donnnnnn/p/9024996.html