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<!DOCTYPE concept
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-C61B979A-921A-5756-8D7E-691C3DDD3437" xml:lang="en"><title>Sharing
databases overview</title><shortdesc>Provides access to a server that allows databases to be accessed
by multiple clients.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
<section id="GUID-3CCD7889-641D-48EB-8151-422A16CFADF1"><title>Description</title> <p>The API has two key concepts: DBMS
server session, and database change notifier. </p> <p><b>DBMS
server session</b> </p> <p>A session with the DBMS server allows suitable
databases to be shared with read/write access by multiple clients. Note that
a session can be used to open any number of databases, and that if write access
is required by one client, then all clients of that database must use the
DBMS server.</p> <p>The DBMS server session is provided by <xref href="GUID-3B846E0B-F161-3C5F-939B-4F4078AF9D95.dita"><apiname>RDbs</apiname></xref>.</p> <p><b>Database change notifier</b> </p> <p>Clients can be notified of changes
(such as transactions committed or rolled back, database closed or recovered)
to shared databases through <xref href="GUID-53AB4535-A859-3A8C-8344-53865B2FE0B4.dita"><apiname>RDbNotifier</apiname></xref>.</p> </section>
</conbody></concept>