---
title: Overview
description: "# Overview of CRC Data Installation Process The Crcdata tables are part of the **Data Repository (CRC) Cell**. The following outlines the steps that will be taken during the Crcdata installation. **Step 1:**   Change your working directory **Step 2:**…"
url: "https://i2b2.org/docs/3-4-crcdata-tables/"
updated: "2026-09-15"
category: i2b2 Installation Guide / Chapter 3. Data Installation / 3.4 Crcdata Tables
---

# Overview

# Overview of CRC Data Installation Process

The Crcdata tables are part of the **Data Repository (CRC) Cell**. The following outlines the steps that will be taken during the Crcdata installation.

**Step 1:**   Change your working directory

**Step 2:**   Configure the database properties for the Crcdata

**Step 3:**   Create the Crcdata tables, indexes and sequences

**Step 4:**   Create the stored procedures

**Step 5:**   Load sample data into the tables

Note

The term "**crcdata**" and "**datamart**" mean the same thing. Your i2b2 demo data package has a folder called crcdata while the scripts that will have the term datamart in the name.

***Example:*** crc_create_datamart_oracle.sql