每当我创建3个表的视图时,它都会复制所有行上的所有数据.我不知道如何连接这些,以便它显示空值而不是重复.你能直接指出我吗?
这是场景:
数据看起来像这样:
[Table 1= Accounts]
id name accountid
1 Family A account001
2 Family B account002
3 Family C account003
[Table 2= Properties]
id accountid description address
1 account001 home california
2 account001 beach mexico
3 account002 hideout arizona
4 account002 getaway nevada
5 account002 skilodge idaho
6 account 003 home texas
[Table 3= Vehicles]
id description make model accountid
1 green Acura Integra account001
2 blue Aston Martin Vantage account001
3 silver …Run Code Online (Sandbox Code Playgroud)