Want to sync data from Oracle to PostgreSQL ?
Try Withdata DBCopier, a Oracle to PostgreSQL converter for Windows, Mac, and Linux, Synchronize Oracle 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.
Synchronize data from Oracle to PostgreSQL
Login to Oracle and target PostgreSQL -> Select source Oracle tables -> Set target PostgreSQL tables -> Sync Oracle data to PostgreSQL
Choose source Oracle database and logon.
Choose target PostgreSQL database and logon.
Click “Wizard – Import All Tables” at task dialog.
then show the wizard.
1. Select source Oracle tables to sync.
2. List target PostgreSQL tables.
Set “Import Type” to “Replace”, it will do a full synchronization.
Or set “Import Type” to “Upsert”, it will do a upsert synchronization.
3. Select PostgreSQL tables to sync.
4. Sync Oracle data to PostgreSQL.
More about Oracle to PostgreSQL converter
Download Withdata DBCopier
See also:
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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