# Step 1: Create module file for Pentaho Repository database

You need to create a file for the database that hosts the Pentaho Repository (either PostgreSQL, MySQL, or Oracle), as well as for HSQLDB.

1. Locate the `pentaho/server/pentaho-server/<your jboss installation directory>/modules/system/layers/base/org` folder and create one of the following paths for the database on which you are hosting the Pentaho Repository.
   * PostgreSQL: `postgresql/main`
   * MySQL: `mysql/main`
   * Oracle: `oracle/main`
   * MS SQL Server: `sqlserver/main`
2. Create these two paths in the same directory.
   * HSQLDB: `hsqldb/main`
   * H2: `h2/main`
3. Download the supported JDBC driver for your Pentaho Repository database to the directory that you just created.

   The [JDBC drivers reference](/install/9.3-install/jdbc-drivers-reference.md) has a list of supported drivers.
4. Within that directory, perform the following steps.
   1. Use an editor to create a text file named `module.xml`.
   2. Copy the appropriate code into the `module.xml` file, then modify it so that the name of the JDBC driver you just downloaded appears.
   3. Save and close the `module.xml` file.

<table data-header-hidden><thead><tr><th></th><th></th></tr></thead><tbody><tr><td>Repository Type</td><td>Module code</td></tr><tr><td>PostgreSQL</td><td><pre class="language-xml"><code class="lang-xml">
&#x3C;?xml version="1.0" encoding="UTF-8"?>
    &#x3C;module xmlns="urn:jboss:module:1.0" name="org.postgresql">
        &#x3C;resources>
            &#x3C;resource-root path="[Name of JDBC Jar You Downloaded Here]"/>
        &#x3C;/resources>
        &#x3C;dependencies>&#x3C;module name="javax.api"/>&#x3C;/dependencies>
    &#x3C;/module>

</code></pre></td></tr><tr><td>MySQL</td><td><pre class="language-xml"><code class="lang-xml">
\<?xml version="1.0" encoding="UTF-8"?>
\<module xmlns="urn:jboss:module:1.0" name="org.mysql">
\<resources>
\<resource-root path="\[Name of JDBC Jar You Downloaded Here]"/>
\</resources>
\<dependencies>\<module name="javax.api"/>\</dependencies>
\</module>

</code></pre></td></tr><tr><td>Oracle</td><td><pre class="language-xml"><code class="lang-xml">
\<?xml version="1.0" encoding="UTF-8"?>
\<module xmlns="urn:jboss:module:1.0" name="org.oracle">
\<resources>
\<resource-root path="\[Name of JDBC Jar You Downloaded Here]"/>
\</resources>
\<dependencies>\<module name="javax.api"/>\</dependencies>
\</module>

</code></pre></td></tr><tr><td>MS SQL Server</td><td><pre class="language-xml"><code class="lang-xml">
\<?xml version="1.0" encoding="UTF-8"?>
\<module xmlns="urn:jboss:module:1.0" name="org.sqlserver">
\<resources>
\<resource-root path="\[Name of JDBC Jar You Downloaded Here]"/>
\</resources>
\<dependencies>\<module name="javax.api"/>\</dependencies>
\</module>

</code></pre></td></tr></tbody></table>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.pentaho.com/install/9.3-install/pentaho-installation-overview-cp/manual-installation/manual-installation-process/prepare-jboss-connections-and-web-app-servers/install-jdbc-driver-as-a-module-in-jboss/step-1-create-module-file-for-pentaho-repository-database.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.