code: def alter_db(name, character_set=None, collate=None, **connection_args):
      '''
      Modify database using ``ALTER DATABASE %(dbname)s CHARACTER SET %(charset)s
      COLLATE %(collation)s;`` query.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' mysql.alter_db testdb charset='latin1'
      '''
      dbc = _connect(**connection_args)
      if dbc is None:
          return []
      cur = dbc.cursor()
      existing = db_get(name, **connection_args)
      qry = 'ALTER DATABASE `{0}` CHARACTER SET {1} COLLATE {2};'.format(
          name.replace('%', r'\%').replace('_', r'\_'),
          character_set or existing.get('character_set'),
          collate or existing.get('collate'))
      args = {}
      _execute(cur, qry, argsf alter_db(name, character_set=None, collate=None, **connection_args):
      '''
      Modify database using ``ALTER DATABASE %(dbname)s CHARACTER SET %(charset)s
      COLLATE %(collation)s;`` query.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' mysql.alter_db testdb charset='latin1'
      '''
      dbc = _connect(**connection_args)
      if dbc is None:
          return []
      cur = dbc.cursor()
      existing = db_get(name, **connection_args)
      qry = 'ALTER DATABASE `{0}` CHARACTER SET {1} COLLATE {2};'.format(
          name.replace('%', r'\%').replace('_', r'\_'),
          character_set or existing.get('character_set'),
          collate or existing.get('collate'))
      args = {}
      _execute(cur, qry, args)
docs: Modify database using ``ALTER DATABASE %(dbname)s CHARACTER SET %(charset)s
      COLLATE %(collation)s;`` query.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' mysql.alter_db testdb charset='latin1'