PostgresOSM.database_exists¶
-
PostgresOSM.
database_exists
(database_name=None)¶ Check if a database exists in the PostgreSQL server being connected.
- Parameters
database_name (str or None) – name of a database, defaults to
None
- Returns
True
if the database exists,False
, otherwise- Return type
bool
Example:
>>> from pyhelpers.sql import PostgreSQL >>> testdb = PostgreSQL('localhost', 5432, username='postgres', database_name='testdb') Password (postgres@localhost:5432): *** Connecting postgres:***@localhost:5432/testdb ... Successfully. >>> testdb.database_exists('testdb') True >>> # Delete the database "testdb" >>> testdb.drop_database(verbose=True) To drop the database "testdb" from postgres:***@localhost:5432 ? [No]|Yes: yes Dropping "testdb" ... Done. >>> testdb.database_exists('testdb') False