Class DBM 

Use

DBM is a class of the sdb.dbm module.

You can use the methods of this class to execute DBM commands. An object of this class represents a connection to a DBM server.

Features

The class DBM contains the following methods:

cmd

rawCmd

release

Constructor Definition

DBM (database_computer = '', database_name = '', dependent_path = '', user_info = '')

 

Parameter	Description
database_computer	Name of the computer you want to connect to The default value is the local computer.
database_name	Name of the database instance you want to connect to This entry is optional.
dependent_path	Directory that contains the version-dependent database server software (see Installation Manual, Directories) This entry is optional.
user_info	Name and password of the DBM operator. Format: <dbm_operator>,<dbm_operator_password>

Activities

If there are multiple installations of the database software on your computer, you can use the database_name and dependent_path parameters to control which version of the Database Manager is started.

●     To create a new database instance with the newest software installation or display information about the existing database instances and software versions, do not enter either database_name or dependent_path .

The system starts the Database Manager of the software installation that has the highest version number.

●     To administer a particular database instance, enter database_name, but not dependent_path.

The system then starts the version of the Database Manager belonging to the database instance specified.

●     To create a database instance of a particular software version, enter dependent_path, but not database_name.

The system then starts the Database Manager of the software installation specified.

Example

To connect to the database instance DEMODB on the local computer via the DBM server as DBM operator DBADMIN with password SECRET, you generate asession object as follows:

session = sdb.dbm.DBM ('', 'DEMODB', '', 'DBADMIN,SECRET')

To connect to the Database Manager of the latest software installation on the local computer, you generate a session object as follows:

session = sdb.dbm.DBM ('', '')

To connect to the remote computer PARMA and select the Database Manager from the software installation /usr/local/sdb/7600, you generate a session object as follows:

session = sdb.dbm.DBM ('PARMA', '', '/usr/local/sdb/7500')