Want to transfer data from multiple similar Oracle tables to 1 PostgreSQL table?
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 multiple similar Oracle tables to a single PostgreSQL table
Login to Oracle and PostgreSQL -> Select source Oracle tables -> Set the target PostgreSQL table -> Copy Oracle data to PostgreSQL
Choose source Oracle database and logon.
Choose target PostgreSQL database and logon.
Click “Convert Similar Tables” at task dialog.
then show the wizard.
1. Select similar Oracle tables.
2. Select a destination PostgreSQL table and config fields.
3. Preview data.
4. Import data from multiple similar Oracle tables to a single PostgreSQL table.
More about Oracle to PostgreSQL converter
Download Withdata DBCopier
See also:
- Copy Oracle table data to PostgreSQL
- Copy Oracle query results to 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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