Re: viewing the description of tables from python DB-API

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От George Young
Тема Re: viewing the description of tables from python DB-API
Дата
Msg-id 20060807152031.e3e1ef59.gry@ll.mit.edu
обсуждение исходный текст
Ответ на viewing the description of tables from python DB-API  ("Daniel Joo" <djoo@vistagen-inc.com>)
Список pgsql-sql
On Tue, 1 Aug 2006 15:30:48 -0700
"Daniel Joo" <djoo@vistagen-inc.com> wrote:

> Is there a way to view the list of all tables from python (or any other
> languages for that matter) DB-API?  What I'm looking for is a command
> similar to the meta-command '\d' that works with the psql client.  

The cursor object has a "description" data member.  
Look at the DB-API spec:  http://www.python.org/dev/peps/pep-0249/
under "Cursor Objects".

Python 2.3.3 (#1, Jan  3 2004, 07:17:11) 
[GCC 3.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pgdb
>>> db=pgdb.connect(database='pigrestore', host='ivy')
>>> cur=db.cursor()
>>> cur.execute('select * from machine')
>>> print cur.description
[('machine_name', 'text', -1, -1, None, None, None), ('machine_id', 'int2', -1, 2, None, None, None), ('area', 'text',
-1,-1, None, None, None), ('text', 'text', -1, -1, None, None, None)]
 
>>> 

-- 
"Are the gods not just?"  "Oh no, child.
What would become of us if they were?" (C.S. Lewis)


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