| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Devrim GUNDUZ <devrim(at)oper(dot)metu(dot)edu(dot)tr>, PostgreSQL Mailing Lists-SQL <pgsql-sql(at)postgresql(dot)org> |
| Subject: | Re: A SQL Training |
| Date: | 2002-07-16 18:07:22 |
| Message-ID: | 200207161107.22547.josh@agliodbs.com |
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| Thread: | |
| Lists: | pgsql-sql |
Devrim,
> Today, one of my teacher asked me a question for a practice... I could not
> solve it :)
>
> Here it comes:
>
> We are given the name of the grandfather in a family. Let's call him A. A
> has n sons, each son has children .
etc.
In a month or so, I will be posting an article on advanced tree structure
(based on Joe Celko's work) in PostgreSQL.
Until then, buy a copy of SQL for Smarties, 2nd ed. by Joe Celko. He has two
chapters on tree structure.
--
-Josh Berkus
Aglio Database Solutions
San Francisco
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