查询出l表的所有，r表只显示status = 1
SQL> select * from l;
STR V
------ -
left_1 1
left_2 2
left_3 3
left_4 4
SQL> select * from r;
STR V STATUS
------- - ----------
right_1 3 1
right_2 4 0
right_3 5 0
...
↧