Oracle DB

Overview

The Oracle Database source supports both Full Refresh and Incremental syncs. You can choose if this connector will copy only the new or updated data, or all rows in the tables and columns you set up for replication, every time a sync is run.

Resulting schema

The Oracle source does not alter the schema present in your database. Depending on the destination connected to this source, however, the schema may be altered. See the destination's documentation for more details.

Data type mapping

Oracle data types are mapped to the following data types when synchronizing data. You can check the test values examples here. If you can't find the data type you are looking for or have any problems feel free to add a new test!

Oracle Type

Resulting Type

Notes

binary_double

number

binary_float

number

blob

string

char

string

char(3 char)

string

clob

string

date

string

decimal

number

float

number

float(5)

number

integer

number

interval year to month

string

long raw

string

number

number

number(6, 2)

number

nvarchar(3)

string

raw

string

timestamp

string

timestamp with local time zone

string

timestamp with time zone

string

varchar2

string

varchar2(256)

string

xmltype

string

If you do not see a type in this list, assume that it is coerced into a string. We are happy to take feedback on preferred mappings.

Features

Feature

Supported

Notes

Full Refresh Sync

Yes

Incremental - Append Sync

Yes

Replicate Incremental Deletes

Coming soon

Logical Replication (WAL)

Coming soon

SSL Support

Coming soon

SSH Tunnel Connection

Coming soon

LogMiner

Coming soon

Flashback

Coming soon

Namespaces

Yes

Enabled by default

Getting started

Requirements

  1. Oracle 11g or above

  2. Allow connections from Airbyte to your Oracle database (if they exist in separate VPCs)

  3. Create a dedicated read-only Airbyte user with access to all tables needed for replication

Setup guide

1. Make sure your database is accessible from the machine running Airbyte

This is dependent on your networking setup. The easiest way to verify if Airbyte is able to connect to your Oracle instance is via the check connection tool in the UI.

This step is optional but highly recommended to allow for better permission control and auditing. Alternatively, you can use Airbyte with an existing user in your database.

To create a dedicated database user, run the following commands against your database:

CREATE USER airbyte IDENTIFIED BY <your_password_here>;
GRANT CREATE SESSION TO airbyte;

Next, grant the user read-only access to the relevant tables. The simplest way is to grant read access to all tables in the schema as follows:

GRANT SELECT ANY TABLE TO airbyte;

Or you can be more granular:

GRANT SELECT ON "<schema_a>"."<table_1>" TO airbyte;
GRANT SELECT ON "<schema_b>"."<table_2>" TO airbyte;

Your database user should now be ready for use with Airbyte.

3. Include the schemas Airbyte should look at when configuring the Airbyte Oracle Source.

Case sensitive. Defaults to the upper-cased user if empty. If the user does not have access to the configured schemas, no tables will be discovered.

Changelog

Version

Date

Pull Request

Subject

0.3.4

2021-09-01

6038

Remove automatic filtering of system schemas.

0.3.3

2021-09-01

5779

Ability to only discover certain schemas.

0.3.2

2021-08-13

4699

Added json config validator.