Want to transfer data from Oracle table to PostgreSQL ?
Try Withdata DBCopier, a Oracle to PostgreSQL converter for Windows, Mac, and Linux, Copy Oracle data to PostgreSQL, 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.
Transfer data from Oracle table To PostgreSQL table
Login to Oracle and PostgreSQL -> Choose source Oracle table -> Set target PostgreSQL table -> Copy Oracle data to PostgreSQL
Choose source Oracle database and logon.
Choose target PostgreSQL database and logon.
Click “Convert From Table” at task dialog.
then show the wizard.
1. Open a source Oracle table.
2. Select a destination PostgreSQL table and config fields.
3. Preview data.
4. Import Oracle data to PostgreSQL.
More about Oracle to PostgreSQL converter
Download Withdata DBCopier
See also:
- Copy Oracle query results to PostgreSQL table
- Merge multiple similar Oracle tables to 1 PostgreSQL table
- Batch copy Oracle tables to PostgreSQL
Oracle → PostgreSQL reference
Type mapping
| Value kind | in Oracle | in PostgreSQL |
|---|---|---|
| Int | NUMBER(10) | integer |
| Bigint | NUMBER(19) | bigint |
| Decimal | NUMBER(p,s) | numeric(p,s) |
| Float | BINARY_DOUBLE | double precision |
| Text | VARCHAR2(n) | varchar(n) |
| Long text | CLOB | text |
| Date | DATE | date |
| Datetime | TIMESTAMP | timestamp |
| Binary | BLOB | bytea |
| Boolean | NUMBER(1) | boolean |
| JSON | CLOB | jsonb |
Dialect differences
Both Oracle and PostgreSQL are database servers, so the differences below are dialect-level: the same concept is spelled differently on each side.
| Property | in Oracle | in PostgreSQL |
|---|---|---|
| port | 1521 | 5432 |
| row limit | FETCH FIRST n ROWS ONLY | LIMIT n |
| dates | DATE, TIMESTAMP | timestamp, timestamptz, date, time |
| long text | CLOB, NCLOB | TEXT |
| binary | BLOB, BFILE | BYTEA |
Command line
| Side | Command |
|---|---|
| Oracle | exp / expdp |
| PostgreSQL | pg_dump or COPY ... TO |
| PostgreSQL (load) | COPY ... FROM |
| Oracle (load) | sqlldr (SQL*Loader) |
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