PostgreSQL.drop_schema

PostgreSQL.drop_schema(schema_names, confirmation_required=True, verbose=False)

Delete/drop one or multiple schemas.

Parameters

• schema_names (str or Iterable[str]) – name of one schema, or names of multiple schemas

• confirmation_required (bool) – whether to prompt a message for confirmation to proceed, defaults to True

• verbose (bool or int) – whether to print relevant information in console as the function runs, defaults to False

Examples:

>>> from pyhelpers.dbms import PostgreSQL

>>> testdb = PostgreSQL('localhost', 5432, 'postgres', database_name='testdb')
Password (postgres@localhost:5432): ***
Creating a database: "testdb" ... Done.
Connecting postgres:***@localhost:5432/testdb ... Successfully.

>>> new_schema_names = ['points', 'lines', 'polygons']
>>> for new_schema in new_schema_names:
...     testdb.create_schema(new_schema, verbose=True)
Creating a schema: "points" ... Done.
Creating a schema: "lines" ... Done.
Creating a schema: "polygons" ... Done.

>>> new_schema_names_ = ['test_schema']
>>> testdb.drop_schema(new_schema_names + new_schema_names_, verbose=True)
To drop the following schemas from postgres:***@localhost:5432/testdb:
    "points"
    "lines"
    "polygons"
    "test_schema"
? [No]|Yes: yes
Dropping ...
    "points" ... Done.
    "lines" ... Done.
    "polygons" ... Done.
    "test_schema" (does not exist.)

>>> testdb.drop_database(verbose=True)  # Delete the database "testdb"
To drop the database "testdb" from postgres:***@localhost:5432
? [No]|Yes: yes
Dropping "testdb" ... Done.