[DB-SIG] Simple db access

Andy Dustman andy@dustman.net
Fri, 29 Jun 2001 16:30:51 -0400 (EDT)

On Fri, 29 Jun 2001, Piotr Trawinski wrote:

> I am pretty much new to python. At the moment i am trying to figure out
> how to make a simple connection to a mysql db. The Python Database API
> Specification doesnt make it clear for me. Could you please give me an
> example or an equilvalent of this php code:
> mysql_pconnect ($host,$user,$passwd);
> mysql_select_db($name,);
> $query=mysql_query("select * from test");
> while ($data=mysql_fetch_row($query)) {
>         echo $data[0];
>         echo $data[1];
> }

Example will be for MySQLdb, but is generally applicable to other DB API

import MySQLdb
db=MySQLdb.connect(host=host, user=user, passwd=passwd, db=name)
# This could also be done instead of supplying db above but is
# non-standard
# db.select_db(name)

c.execute("select * from test")
for row in c.fetchall(): # assumes result set is not huge
    print row[0], row[1]

# alternate for potentially huge result sets
# you would probably also use this non-standard connection:
# db=MySQLdb.connect(cursorclass=MySQLdb.SSCursor,...)

row = c.fetchone()
while row:
    print row[0], row[1]
    row = c.fetchone()

Andy Dustman         PGP: 0xC72F3F1D
    @       .net     http://dustman.net/andy
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