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If I know that id is 2, how can I search for "News and News superiors" at a time?

Source: Internet
Author: User
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If I know that id is 2, how can I search for "news and news ?? Table: tableidtidtypename10 root directory 21 News 32 if the news sublevel knows that id is 2, how does one search for "News and News sublevel ?? ------ Solution ------------------ $ id2; $ SQL & quot; select * from if you know that id is 2, how can you find "News and News subordinates" at one time ??
Table: table
Id tid typename
1 0 Directory
2 1 News
3 2 news subordinates

If I know that id is 2, how can I search for "news and news ??

------ Solution --------------------
$ Id = 2;
$ SQL = "select * from tbl_name where id = $ id or tid = $ id ";

If there are lower-level sub-levels, it is difficult to do so. recursion is required.

------ Solution --------------------
Recursion

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