PostgreSQL.connect_database

PostgreSQL.connect_database(database_name=None, verbose=False)

Establish a connection to a database.

Parameters:

• database_name (str | None) – Name of the database. If database_name=None (default), the database name must be input manually.

• verbose (bool | int) – Whether to print relevant information to the console; defaults to False.

Examples:

>>> from pyhelpers.dbms import PostgreSQL
>>> testdb = PostgreSQL(database_name='testdb', verbose=True)
Password (postgres@localhost:5432): ***
Creating a database: "testdb" ... Done.
Connecting postgres:***@localhost:5432/testdb ... Successfully.
>>> testdb.connect_database(verbose=True)
Being connected with postgres:***@localhost:5432/testdb.
>>> testdb.connect_database(database_name='postgres', verbose=True)
Connecting postgres:***@localhost:5432/postgres ... Successfully.
>>> testdb.database_name
'postgres'
>>> testdb.connect_database(database_name='testdb', verbose=True)
Connecting postgres:***@localhost:5432/testdb ... Successfully.
>>> testdb.database_name
'testdb'
>>> testdb.drop_database(verbose=True)  # Delete the database "testdb"
To drop the database "testdb" from postgres:***@localhost:5432
? [No]|Yes: yes
Dropping "testdb" ... Done.
>>> testdb.database_name
'postgres'