---
title: Overview
description: "The following installations **must be completed** prior to beginning the process of installing the i2b2 data. ![](https://community.i2b2.org/wiki/download/attachments/6684832/book_open.png)  **Data install Requirements Chapter** ![](https://community.i2b2.org/wiki/download/attachments/6684832/checkbox_checked.png)  Installed a Database Management System *(Oracle, PostgreSQL or SQL Server)* ![](https://community.i2b2.org/wiki/download/attachments/6684832/checkbox_checked.png)  Installed Apache Ant version 1.9.6 ![](https://community.i2b2.org/wiki/download/attachments/6684832/checkbox_checked.png)  Downloaded the…"
url: "https://i2b2.org/docs/3-0-prerequisites/"
updated: "2026-09-15"
category: i2b2 Installation Guide / Chapter 3. Data Installation / 3.0 Prerequisites
---

# Overview

The following installations **must be completed** prior to beginning the process of installing the i2b2 data.

![](https://community.i2b2.org/wiki/download/attachments/6684832/book_open.png)  **Data install Requirements Chapter**

![](https://community.i2b2.org/wiki/download/attachments/6684832/checkbox_checked.png)  Installed a Database Management System *(Oracle, PostgreSQL or SQL Server)*

![](https://community.i2b2.org/wiki/download/attachments/6684832/checkbox_checked.png)  Installed Apache Ant version 1.9.6

![](https://community.i2b2.org/wiki/download/attachments/6684832/checkbox_checked.png)  Downloaded the i2b2 data installation package listed in [i2b2 Requirements](https://i2b2.atlassian.net/wiki/x/WwLMD)* Section*.