Migrating data from Oracle to MySQL

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

Oracle vs. MySQL:

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.
MySQL is an open-source relational database management system (RDBMS) that provides a powerful and scalable platform for managing and storing data. Developed by Oracle Corporation, MySQL is widely used in web applications and is known for its reliability, flexibility, and ease of use. It supports various storage engines, including InnoDB for transactional processing and MyISAM for read-intensive applications, offering developers the flexibility to choose the engine that best suits their needs. With features like ACID compliance, replication support, and a thriving community of developers, MySQL is a popular choice for businesses of all sizes looking to build robust and efficient database-driven applications.

Prerequisite:

Software Required:

DMToolkit_x64.zip (63.5 MiB)	64-bit Windows application for ESF Database Migration Toolkit 12.2.09 (2025-07-17). (md5: af00d640b9e71618ed20932c52f4688d)
DMToolkit_win32.zip (58.8 MiB)	32-bit Windows application for ESF Database Migration Toolkit 12.2.09 (2025-07-17). (md5: 1b7566ee53ff21b6dc8444741b9da73a)

System Supported:
- Windows 7 or higher.
- Oracle 11g or higher.
- MySQL 3.23 or higher.

Step by Step Wizard:

Configure Oracle Data Source
- In the "Choose a Data Source" dialog:
  - Select "Oracle"
- Enter server details:
  - Server name: localhost (default)
  - Port: 1521 (default)
- Provide authentication:
  - Username: system (default)
  - Associated password
- Select logon method:
  - Choose from: SID, Service_Name, or TNS
- Database specification:
  - For SID/Service_Name: Enter value in Database field
  - For TNS: Leave Database field empty
- Schema configuration:
  - Enter schema name (defaults to username)
  - Optional: Click Refresh to view available schemas
Fig. 1: Oracle data source configuration
Configure MySQL Destination
- In the "Choose a Destination" dialog:
  - Select "MySQL"
- Enter connection parameters:
  - Server name: localhost (default)
  - Port: 3306 (default)
  - Username and Password
- Optional configurations:
  - Select a MySQL storage engine
  - Specify character set (e.g., UTF-8)
- Database selection/creation:
  - Click the Refresh button to list available databases
  - Either:
    - Select existing database from list
    - Or enter new database name
  - Note: New databases will be automatically created during migration
Fig. 2: MySQL 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 Oracle to MySQL.
  
  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.