我想加入两张桌子，
booking table
id from_branch to_branch
1 2 4
2 3 4
Branch Table
id name
1 pune
2 mumbai
3 nanded
4 parbhani
5 aurangabad
如上表所示，我将它们与两个表（ from_branch 、 to_branch ）中通用的 id 联合起来
我的查询：
SELECT booking.id,
booking.from_branch,
booking.to_branch,
branch.branch_id,
branch.branch_name AS "FROM",
branch.branch_name AS "TO"
FROM booking
JOIN branch
ON booking.from_branch = branch.branch_id
WHERE booking.from_branch = branch.branch_id
OR booking.to_branch = branch.branch_id
我怎么能得到这样的结果
id from_branch to_branch FROM TO
1 2 4 Mumbai Parbhani
2 3 4 Nanded Parbhani
使用连接分支表两次
select b.from_branch,b.to_branch,
bn.name as from_branch_name,
bn1.name as to_branch_name
from booking b join branch bn
on b.from_branch=bn.id
join branch bn1 on b.to_branch=bn1.id
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我来说两句