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Re: Backend DB
At 02:23 PM 4/27/99 -0700, Angela Liang wrote:
>OpenLDAP supports LDBM as backend DB. What is LDBM?
LDBM stands for LDAP DataBase Manager. It provides the server
and it's tools with a generic interface to common database managers,
Berkeley DB <http://www.sleepycat.com>
GDBM (Gnu Database Manager) <http://www.gnu.org/>
>What is the difference between LDBM with RDBM?
Remote Database Manager ?
RDBM implements a RPC-based client/server interface
between an application and a DBM. An API is provided which
is very similiar to GDBM (and other DBMs). One could
implement an LDBM to RDBM mapping.
Reliable Database Manager ?
RDBM provides a reliable database manager based upon
CDB. One could implement an LDBM to RDBM (or CDB) mapping.
(However, you likely meant:)
Relational Database Management (System) ?
An RDBMS is a family of database management systems that
use a relational model. LDBM is designed to use database
systems that support key/value lookup. LDBM is more
suited to hash, b-tree, and similiar database architectures.
>What can I do if we want to use Sybase?
OpenLDAP does not directly support Relational Database Management
Systems. There are many technical hurdles that must be overcome
to implement a generic RDBMS backend. For details, see the
-devel mailing list archives.
However, OpenLDAP supports a number of backends designed for
implementating interfaces to existing databases. Back-shell
(and soon to be released, back-perl and back-tcl) facilate
implementation of custom backends.
>How much work involved?
Depends on many factors.
- Backend DB
- From: Angela Liang <email@example.com>