TableA | TableB | TableC | |||||
Name | Name | NameA | NameB | ||||
A001 | B001 | A001 | B001 | ||||
A002 | B002 | A001 | B002 | ||||
A003 | B003 | A002 | B003 | ||||
B004 | A003 | B004 | |||||
上面三个表如何通过Ling to sql 实现如下的查询结果
B001 | B002 | B003 | B004 | |||
A001 | 1 | 1 | 0 | 0 | ||
A002 | 0 | 0 | 1 | 0 | ||
A003 | 0 | 0 | 0 | 1 | ||