Migrating data from Oracle to MariaDB
This guide walks you through migrating data from Oracle to MariaDB in a few simple steps using ESF Database Migration Toolkit. Simplify complex migration tasks and save valuable time with our streamlined approach.Prerequisite:
Software Required:
ESF Database Migration Toolkit »System Supported:
- Windows 7 or higher.
- Oracle 11g or higher.
- MariaDB 5.1 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 - In the "Choose a Data Source" dialog:
-
Configure MariaDB Destination
- In the "Choose a Destination" dialog:
- Select "MariaDB"
- Enter connection details:
- Server name:
localhost(default) - Port:
3306(default) - Username
- Password
- Server name:
- Optional settings:
- Select MariaDB Storage Engine
-
Choose character set (e.g.,
UTF-8)
- Database configuration:
- Click the Refresh button to list available databases
- Select existing database OR enter new database name
- Note: Non-existent databases will be automatically created during migration
Fig. 2: MariaDB destination configuration - In the "Choose a Destination" dialog:
-
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
-
Select migration objects: Choose tables or views to include in the migration.
-
Execution Dialog
-
Start migration: Click "Submit" to initiate automated data transfer from Oracle to MariaDB.
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 --helpfor parameter options)
-
Start migration: Click "Submit" to initiate automated data transfer from Oracle to MariaDB.
-
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.