Re: [postgis-users] How to sql scripts in a file?
| От | Giuseppe Broccolo |
|---|---|
| Тема | Re: [postgis-users] How to sql scripts in a file? |
| Дата | |
| Msg-id | CAFtuf8D_vPyEqmUdqOgr2GkBHePt-EPeJRzJYA26FXGwN54Gzg@mail.gmail.com обсуждение исходный текст |
| Ответ на | How to sql scripts in a file? (John Zhang <johnzhang06@gmail.com>) |
| Ответы |
Re: [postgis-users] How to sql scripts in a file?
|
| Список | pgsql-sql |
Hi John,
I guess you are using Psycopg2 as driver to PostgreSQL here (please add further details about your setup).
Assuming Psycopg2: I guess that is because actions are not committed in your snippet. You may be interested to
set autocommit for the execution of the script, even better to manage properly transactions, see the documentation
For instance, I'd use context managers for connectors and cursors (available from version 2.5):
sqlF = r'{}\{}'.format(sFldr_sql,sSQLFile)
with psycopg2.connect(...) as conn: with conn.cursor() as cur: curs.execute(open(sqlF,'r').read())
So that if no exception has been raised, the transaction is committed. In case of exception the transaction
is rolled back. Also the cursor is then properly closed, without affecting the transaction.
Giuseppe.
Il giorno gio 23 apr 2020 alle ore 13:43 John Zhang <johnzhang06@gmail.com> ha scritto:
_______________________________________________Hello all,--I have a need to execute sql scripts in a file with comments in Python 2.7.here is m code snippet:sqlF = r'{}\{}'.format(sFldr_sql,sSQLFile)
sql_file_contents = open(sqlF,'r').read()cur.execute(sql_file_contents)the file can be executed from pgAdmin successfully. However, the code above runs quietly without any issues raised but NO results was worked out.In the sql file, there are scripts to DROP FUNCTION IF EXISTS and CREATE OR REPLACE FUNCTION.Your input to shed light on it would be much appreciated.Thank youYours sincerely,John Zhang
postgis-users mailing list
postgis-users@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/postgis-users
В списке pgsql-sql по дате отправления: