Migrating Databases From Oracle to S3

This post will go into migrating databases from Oracle to S3 and analyze the benefits of moving to the Amazon Web Service (AWS) S3 (Simple Storage Service).


Oracle, a proprietary relational database management system (RDMS) is mainly used for data warehousing and Online Transaction Processing (OLTP). It provides support to GNU/LINUX and Windows Server and most applications merge seamlessly into the database. Being ACID-compliant, Oracle assures data integrity and reliability.

On the other hand, Amazon S3 is a data warehousing solution based in the cloud and is ideal for Online Analytical Processing (OLAP). For launching applications, an S3 cluster is initiated through API calls and then connected with the help of the AWS Management Console to an S3 instance. The benefits of S3 range from high data availability, scalability, and performance, to unlimited storage. It is because of these advantages that organizations prefer to move databases from Oracle to S3.

Further, S3 can backup, restore, and archive big data analytics, IoT devices, and enterprise applications, store almost unlimited applications and offer 99.999999999 (11 9’s) level of data durability.

While shifting databases from Oracle to S3, ensure that the Oracle databases are optimized on S3. Here are three ways to do so.

· Before replacing the existing servers and storage with AWS infrastructure, it is necessary to run EC2 compute instances and EBS (Elastic Block Store) storage in on-premises Oracle databases.

· The on-premises Oracle database has to be shifted to the Amazon Relational Database Service which is a managed database service for Oracle and other popular platforms. The advantage here is that the management tasks of Oracle are reduced when operating on the AWS infrastructure.

· Even though Amazon Aurora is not a specific replacement for Oracle it has several cutting-edge features that are designed and optimized for the cloud infrastructure. Businesses needing to migrate to the cloud now prefer this platform.

The method opted for migrating databases from Oracle to S3 depends on the needs of individual businesses according to service options and requirements.

Moving On-Premises Database Oracle to S3 Cloud

There are two ways to move the database Oracle to S3.

In the first, the Oracle DBMS_FILE_TRANSFER package and the Oracle Data Pump are used for connecting to the Oracle instance source, either through an Amazon RDS for the Oracle database instance or an Amazon EC2 instance. The DBMS_DATAPUMP package then exports the Oracle data to a dump file that is then copied to the Amazon RDS Oracle DB instance through a connected database link. Finally, the DBMS_DATAPUMP package imports the data to S3.

In the second, the Oracle DBMS_DATAPUMP package exports the Oracle data and the file is dumped in an S3 bucket and downloaded to the DATA_PUMP_DIR directory in the RDS Oracle DB instance. Finally, the DBMS_DATAPUMP package imports the data in the dump file and copies it to the Amazon RDS Oracle DB instance.

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