<refpurpose>The default database type to use</refpurpose>
<refclass>Variable</refclass>
</refnamediv>
<refsect1>
<title>Value Type</title>
<para>Any keyword representing a valid database back-end of
<refpurpose>The default database type to use</refpurpose>
<refclass>Variable</refclass>
</refnamediv>
<refsect1>
<title>Value Type</title>
<para>Any keyword representing a valid database back-end of