<xs:element name="database">
    <xs:complexType mixed="true">
        <xs:choice minOccurs="0" maxOccurs="unbounded">
            <xs:element ref="docbook:inlinemediaobject" />
            <xs:element ref="docbook:remark" />
            <xs:element ref="docbook:superscript" />
            <xs:element ref="docbook:subscript" />
            <xs:element ref="docbook:xref" />
            <xs:element ref="docbook:link" />
            <xs:element ref="docbook:olink" />
            <xs:element ref="docbook:anchor" />
            <xs:element ref="docbook:biblioref" />
            <xs:element ref="docbook:alt" />
            <xs:element ref="docbook:annotation" />
            <xs:element ref="docbook:indexterm" />
            <xs:element ref="docbook:phrase" />
            <xs:element ref="docbook:replaceable" />
        </xs:choice>
        <xs:attribute name="role" />
        <xs:attributeGroup ref="docbook:db.common.attributes" />
        <xs:attributeGroup ref="docbook:db.common.linking.attributes" />
        <xs:attribute name="class">
            <xs:simpleType>
                <xs:restriction base="xs:token">
                    <xs:enumeration value="altkey" />
                    <xs:enumeration value="constraint" />
                    <xs:enumeration value="datatype" />
                    <xs:enumeration value="field" />
                    <xs:enumeration value="foreignkey" />
                    <xs:enumeration value="group" />
                    <xs:enumeration value="index" />
                    <xs:enumeration value="key1" />
                    <xs:enumeration value="key2" />
                    <xs:enumeration value="name" />
                    <xs:enumeration value="primarykey" />
                    <xs:enumeration value="procedure" />
                    <xs:enumeration value="record" />
                    <xs:enumeration value="rule" />
                    <xs:enumeration value="secondarykey" />
                    <xs:enumeration value="table" />
                    <xs:enumeration value="user" />
                    <xs:enumeration value="view" />
                </xs:restriction>
            </xs:simpleType>
        </xs:attribute>
    </xs:complexType>
</xs:element>