Migrating data from IBM DB2 to Oracle

This guide walks you through migrating data from IBM DB2 to Oracle in a few simple steps using ESF Database Migration Toolkit. Simplify complex migration tasks and save valuable time with our streamlined approach.

IBM DB2 vs. Oracle:

IBM DB2 is a high-performance relational database management system (RDBMS) developed by IBM, designed to handle large volumes of data and support complex transactions. It offers robust features for data management, security, and scalability, making it suitable for enterprises of all sizes. DB2 is known for its efficiency in processing SQL queries, its advanced analytics capabilities, and its integration with various platforms, including cloud environments. It supports a range of operating systems such as Windows, UNIX, and Linux, and provides tools for database automation, optimization, and administration.
Oracle is a leading multinational computer technology corporation specializing in database management systems. Renowned for its robust and scalable database solutions, Oracle offers a comprehensive suite of products encompassing database technologies, cloud applications, and enterprise software. With a global presence and a reputation for innovation, Oracle serves diverse industries including finance, healthcare, retail, and manufacturing, empowering organizations to manage, secure, and analyze their data efficiently to drive business success.

Prerequisite:

Software Required:

DMToolkit_x64.zip (63.6 MiB)	64-bit Windows application for ESF Database Migration Toolkit 12.2.08 (2025-07-11). (md5: e93a0ef57622bfd8ee77d6aa6e38c13b)
DMToolkit_win32.zip (58.8 MiB)	32-bit Windows application for ESF Database Migration Toolkit 12.2.08 (2025-07-11). (md5: bd34cb7f73c88c6d0c7a44069ad756d6)

System Supported:
- Windows 7 or higher.
- IBM DB2 9.x or higher.
- Oracle 11g or higher.

Step by Step Wizard:

Connect to IBM DB2
- In the "Choose a Data Source" dialog:
  - Select "IBM DB2"
- Specify server connection details:
  - Server name: localhost (default)
  - Port: 50000 (default)
- Enter authentication credentials:
  - Username: db2admin (default)
  - Password
- In the Database combobox:
  - Enter the source DB2 database name
- Schema selection procedure:
  1. Click Refresh Schema to load available schemas
  2. Select desired schema from the list
Fig. 1: IBM DB2 data source configuration
Configure Oracle Destination
- In the "Choose a Destination" dialog:
  - Select "Oracle"
- Enter server details:
  - Server name: localhost (default)
  - Port: 1521 (default)
- Provide authentication credentials:
  - Username: SYSTEM (default)
  - Password
- Select logon method:
  - SID
  - Service_Name
  - TNS
- Configure database connection:
  - For SID/Service_Name: Enter value in Database field
  - For TNS: Leave Database field blank
- Schema configuration:
  - Enter schema name (default: same as username)
  - Click the Refresh button to view available schemas
Fig. 2: Oracle destination configuration
In "Select Source Table(s) & View(s)" Dialog
- Select migration objects: Choose tables or views to include in the migration.
  
  Fig. 3: Select tables and views
- Modify table structure: Click the ellipsis (...) button to access table options and schema adjustments.
  
  Fig. 4: Do transform
- Configure field mapping: In the Field Mapping options:
  - Customize destination fields (name, data type, default value, comments)
  - Select data transfer method:
    - Overwrite Table (replace existing data)
    - Empty Data (truncate before insert)
    - Append Data (add to existing data)
    - Skip Table (exclude from transfer)
  - Apply data filters before transfer
Execution Dialog
- Start migration: Click "Submit" to initiate automated data transfer from IBM DB2 to Oracle.
  
  Fig. 5: Execute migration
- Monitor progress: Click "Browse Log" for real-time migration tracking, including issue resolution details.
- Save configuration: Click "Save as job" to store settings for:
  - Quick reloads of migration jobs
  - Command-line execution (use: dmtc.exe --help for parameter options)
Finished!

After migration completes, the toolkit generates a comprehensive report for verifying migration accuracy. You can monitor progress as the automated process runs efficiently. For any questions or feedback, contact us – our team is ready to assist.