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<?xml version="1.0" encoding="ISO-8859-1"?>
<refentry id="RE-XB-1">
  <refmeta>
    <refentrytitle>Bidirectional Transactional Replicaton Setup</refentrytitle>
    <refmiscinfo>tutorial</refmiscinfo>
  </refmeta>
  <refnamediv>
    <refname>Creating a publication</refname>
    <refpurpose>Creating a replication publication account</refpurpose>
  </refnamediv>

<refsect1 id="RE-XB-1a">
<title>Preliminaries</title>
<para>Virtuoso supports bidirectional transactional replication via mechanism
of updateable subscriptions.</para>

<itemizedlist mark="bullet">
  <listitem>Every table has only one publisher.</listitem>
  <listitem>Subscribers can update replicated tables on their side and then
submit data back to publisher. Publisher performs conflict resolution
and either accepts or rejects that data.</listitem>
  <listitem>It is assumed that all the tables in publication with updateable
subscriptions option have primary keys and that primary key columns are never
modified.</listitem>
</itemizedlist>
</refsect1>

<refsect1 id="RE-XB-1b">
<title>Example publication account setup</title>
<orderedlist>
  <listitem>Login to the Conductor UI using the dba account.</listitem>
  <listitem>Go to the "Replication" tab, then go to the "Transactional" tab and then go the "Publications" sub-tab.</listitem>
  <listitem>Press the "Create" button.</listitem>
  <listitem>Enter publication name, check the "Updateable" checkbox and press the "Create" button.</listitem>
</orderedlist>
</refsect1>

<refsect1 id="RE-XB-1c">
<title>Equivalent SQL commands to above</title>
<orderedlist>
  <listitem>Connect to the Virtuoso server via ISQL utility as DBA user.</listitem>
  <listitem>Create publication "repldemo" with log file "repldemo.log"
  <programlisting>
SQL&gt; repl_publish('repldemo', 'repldemo.log', 1);
  </programlisting></listitem>
</orderedlist>
</refsect1>
</refentry>
