我有 4 张 table :
table1
id1,
fk_tbl2 //this is the foreign key to the "id" in table2
table2
id2,
fk_tbl3 //this is the foreign key to the "id" in table3
table3
id3,
fk_tbl4 //this is the foreign key to the "id" in table4
table4
id4,
name
我想做一个多表连接，当用户输入“id4”时，我可以得到“table1”中的记录列表。
如何用C#编写连接？ 谢谢。
最佳答案
from t1 in table1
join t2 in table2 on t1.fk_tbl2 equals t2.id2
join t3 in table3 on t2.fk_tbl3 equals t3.id3
join t4 in table4 on t3.fk_tbl4 equals t4.id4
where t4.id4 == id
select t1
关于c# - LINQ连接多表，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17297295/