moodle/mod/folder/db/install.xml

<?xml version="1.0" encoding="UTF-8" ?>
<XMLDB PATH="mod/folder/db" VERSION="20120122" COMMENT="XMLDB file for Folder module"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
>
  <TABLES>
    <TABLE NAME="folder" COMMENT="each record is one folder resource">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true" NEXT="course"/>
        <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="id" NEXT="name"/>
        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" PREVIOUS="course" NEXT="intro"/>
        <FIELD NAME="intro" TYPE="text" NOTNULL="false" SEQUENCE="false" PREVIOUS="name" NEXT="introformat"/>
        <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="intro" NEXT="revision"/>
        <FIELD NAME="revision" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="incremented when after each file changes, solves browser caching issues" PREVIOUS="introformat" NEXT="timemodified"/>
        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" PREVIOUS="revision"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
      </KEYS>
      <INDEXES>
        <INDEX NAME="course" UNIQUE="false" FIELDS="course"/>
      </INDEXES>
    </TABLE>
  </TABLES>
</XMLDB>