Want to batch copy data from Oracle tables to MariaDB?
Try Withdata DBCopier, a Oracle to MariaDB converter for Windows, Mac, and Linux, Bulk copy Oracle to MariaDB, Easy and Fast.
- Can run in GUI mode, Step by Step, just a few mouse clicks.
- Can run in Command line, for Scheduled Tasks and Streams.
- Support Windows, Linux, and macOS.
Batch copy data from Oracle tables to MariaDB tables
Login to Oracle and MariaDB -> Select source Oracle tables -> Set target MariaDB tables -> Copy Oracle data to MariaDB
Choose source Oracle database and logon.

Choose target MariaDB database and logon.

Click “Convert All Tables” at task dialog.

then show the wizard.
1. Select source Oracle tables.

2. List target MariaDB tables.

3. Select MariaDB tables to import.

4. Transfer data from Oracle tables to MariaDB.

More about Oracle to MariaDB converter
See also:
- Copy Oracle table data to MariaDB
- Copy Oracle query results to MariaDB table
- Merge multiple similar Oracle tables to 1 MariaDB table
Oracle → MariaDB reference
Type mapping
| Value kind | in Oracle | in MariaDB |
|---|---|---|
| Int | NUMBER(10) | INT |
| Bigint | NUMBER(19) | BIGINT |
| Decimal | NUMBER(p,s) | DECIMAL(p,s) |
| Float | BINARY_DOUBLE | DOUBLE |
| Text | VARCHAR2(n) | VARCHAR(n) |
| Long text | CLOB | LONGTEXT |
| Datetime | TIMESTAMP | DATETIME |
| Binary | BLOB | LONGBLOB |
| Boolean | NUMBER(1) | TINYINT(1) |
| JSON | CLOB | JSON |
Dialect differences
Both Oracle and MariaDB are database servers, so the differences below are dialect-level: the same concept is spelled differently on each side.
| Property | in Oracle | in MariaDB |
|---|---|---|
| port | 1521 | 3306 |
| identifiers | "double quotes" | `backtick` |
| row limit | FETCH FIRST n ROWS ONLY | LIMIT n |
| dates | DATE, TIMESTAMP | DATETIME, TIMESTAMP, DATE, TIME |
| long text | CLOB, NCLOB | TINYTEXT / TEXT / MEDIUMTEXT / LONGTEXT |
| binary | BLOB, BFILE | BLOB / TINYBLOB / LONGBLOB |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| MariaDB | mariadb-dump |
| MariaDB (load) | mariadb-import, or LOAD DATA INFILE |
| Oracle (load) | sqlldr (SQL*Loader) |
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