I have a table structure
kinda like this
id | title | next
1 | test | 5
2 | test | 0
3 | test | 0
4 | test | 0
5 | test | 3
Now, as you see 1 points to next item 5 and 5 points to next item 3 and 3 denotes the end
I need a query, from which I can get 1, 5, 3 serially in one column and their title also
like
result | title
--------------
1 | test
5 | test
3 | test
--------
please help. I dont even know how to get started at such query.
您需要的是树查询 - 检查是否可以在单个查询中查询MySQL中的树结构表到任何深度?
What you want to do here is join the table on itself.
SELECT * FROM `table` AS `child`
JOIN `table` AS `parent`
ON `parent`.`next` = `child`.`id`
You need to give both copies of the table their own alias (here: parent and child) because otherwise you will run into uniqueness troubles.
One way would be to create a loop that repeats a simple query.. I could post an example here. Are you using PHP?
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