This is the implementation of the Oracle data handler for MindsDB. Oracle Database is a multi-model database management system produced and marketed by Oracle Corporation.

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Prerequisites

Before proceeding, ensure the following prerequisites are met:
  1. Install MindsDB locally via Docker or use MindsDB Cloud.
  2. To connect Oracle to MindsDB, install the required dependencies following this instruction.
  3. Install or ensure access to Oracle.

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Implementation

This handler is implemented using the oracledb library. Please install it with the below command before using this handler. 
pip install oracledb
The required arguments to establish a connection are as follows:
  • host is the host name, IP address, or URL.
  • port is the port used to make TCP/IP connection.
  • sid is the unique identifier of the database instance.
  • user is the database user.
  • password is the database password.
The optional arguments are as follows:
  • disable_oob defines whether to disable out-of-bank breaks.
  • auth_mode defines the database privilege mode: SYSDBA, SYSOPER, or others.

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Usage

In order to make use of this handler and connect to the Oracle database in MindsDB, the following syntax can be used: 
CREATE DATABASE oracle_datasource
WITH
  ENGINE = 'oracle',
  PARAMETERS = {
    "host": "127.0.0.1",
    "port": 1521,
    "sid": "ORCL",
    "user": "sys",
    "password": "password",
    "disable_oob": true,
    "auth_mode": "SYSDBA"
  };
The connection accepts either sid or service_name arguments to target the right database instance. You can use this established connection to query your table as follows: 
SELECT *
FROM oracle_db.my_table;