Oracle to MySQL Migration: 2 Easy Methods

on Data Driven Strategies, Data Extraction, Data Integration, Data Replication, Database Management Systems, ETL • December 23rd, 2021 • Write for Hevo

The volume of data that businesses collect has grown exponentially over the past few years. This could be data related to how people interact with their product or service, what people think of their offerings, how well the performance of their marketing efforts, etc. Businesses can then use this data to make data-driven decisions and plan their future strategies accordingly. Two of the most popular Relational Database Management Systems (RDBMS) are Oracle and MySQL. Many users connect Oracle to MySQL for migration purposes or share data.

Both Oracle and MySQL are widely used by a large number of businesses. These databases share several key similarities as well as differences. It is essential to understand the key characteristics of both these databases in order to set up a connection between them.

This article will help you understand the two easy methods that can help you set up Oracle to MySQL Migration, enabling you to leverage the advantages of both databases.

Table of Contents

What is Oracle?

Oracle Logo
Image Source: http://allvectorlogo.com/oracle-database-logo/

Oracle is a Relational Database Management System (RDBMS) from Oracle Corporation. Oracle’s Relational Database Management System (RDBMS) is a multi-model system, that was primarily designed for Data Warehousing and Enterprise Grid Computing. It is now the database of choice for almost all Enterprises due to its cost-effective solution for data management. Oracle houses support for Structured Query Language (SQL), allowing users to easily interact with the database.

Oracle offers five different editions of its RDBMS from which users can choose based on their business and data requirements. These editions are as follows:

  • Express Edition: This is an entry-level edition that is available free of cost for everyone to download, install, manage, develop, deploy, etc.
  • Standard Edition One: This edition is considered to be suitable for business applications that require a single-server or are highly branched but require limited features.
  • Standard Edition: In addition to all features in Standard Edition One, the Standard Edition houses support for Oracle Real Application Clustering Service and larger machines.
  • Enterprise Edition: The Enterprise Edition offers numerous advanced features such as improved performance, advanced security, availability, and scalability. These features are required for most critical applications and business processes in which online transaction processing is involved.
  • Personal Edition: Except for Oracle Real Application Clustering, the Personal Edition houses all features of the Enterprise Edition.

More information on Oracle can be found here.

Key Features of Oracle

The key features of Oracle are as follows:

  • Client/Server Architecture: Oracle is based on Distributed Systems that have the same degree of data consistency and transparency as any Non-distributed Systems along with all advantages of a local Database Management System. Oracle takes full advantage of this distributed architecture by implementing a Client/Server Model. Hence, Oracle allows processing to be split into Client and Server application programs.
  • Portability: Oracle can easily be ported to work on a wide variety of Operating Systems. Hence, any application developed using Oracle can be ported to any other Operating System as per requirements without making any changes to it.
  • Scalability and Performance: Oracle houses numerous features like advanced Portability and Real Application Clustering that make it highly scalable. It also gives users the ability to tune the performance of their database as per requirements, allowing it to retrieve and alter data faster, thereby improving query execution time along with application operations.
  • Availability: All real-time applications now require high Data Availability. Since Oracle is built on high-performing computing environments, it can be configured easily to ensure all-time Data Availability. This ensures that the data is accessible during planned, unplanned failures or downtimes.
  • Backup and Recovery: Oracle houses robust recovery features that enable users to recover data from almost all kinds of database failures. In case of a failure, the database is recovered in no time, thereby ensuring high availability. Also, the unaffected parts of the database are still available even while the affected ones are getting recovered.
  • Security: Oracle is considered to be the database of choice for most Enterprises and hence, stores a lot of sensitive information. The security of this data is always the top priority for obvious reasons. Oracle houses advanced in-built mechanisms that can be used to control and monitor data access and usage. It can be used to implement strong authorization policies that can help prevent unauthorized access to the data and only allow distinct access to the users as per requirements.
  • Database Integrity: Oracle can ensure the consistency of all the data stored by enforcing Data Integrity. This saves a lot of engineering resources that would have been otherwise utilized in managing integrity checks.
  • Concurrent Processing: Oracle allows a large number of users to execute a variety of applications concurrently.

What is MySQL?

MySQL Logo
Image Source: https://wallpaperaccess.com/mysql

MySQL is considered to be one of the most popular Open-Source Relational Database Management Systems (RDBMS). MySQL implements a simple Client-Server Model that helps its users manage Relational Databases i.e. data stored in the form of rows and columns across tables. It uses the well-known query language, Structured Query Language (SQL) that allows users to perform all required CRUD (Create, Read, Update, Delete) operations.

MySQL was first developed by a Swedish company called MySQL AB in 1994. The company was then taken over by Sun Microsystems in 2008 which was finally taken over by the US tech giant, Oracle. Oracle is now responsible for the development and growth of MySQL. Even though MySQL is Open-Source and free of cost for everyone, it houses some premium features that are offered by Oracle only to those customers who are willing to pay for its usage.

Even though there is very high competition in the database market today, MySQL is considered to be the preferred database for more than 5000 companies including Uber, Netflix, Pinterest, Amazon, Airbnb, Twitter, etc. MySQL is considered to be one of the most popular Open-Source Relational Database Management Systems (RDBMS). MySQL implements a simple Client-Server Model that helps its users manage Relational Databases i.e. data stored in the form of rows and columns across tables. It uses the well-known query language, Structured Query Language (SQL) that allows users to perform all required CRUD (Create, Read, Update, Delete) operations.

More information on MySQL can be found here.

Key Features of MySQL

Some of the key features of MySQL are as follows:

  • Robust Transactional Support: Implementation of ACID (Atomicity, Consistency, Isolation, Durability) properties that ensures no data loss or inconsistency.
  • Ease of Use: Considering that it makes use of SQL for querying data, anyone with basic knowledge of SQL can perform the required tasks easily.
  • Security: Implements a complex data security layer that ensures that only authorized users can access sensitive data.
  • Scalable: Considered to be highly scalable due to support for multi-threading. 
  • Roll-back Support: MySQL supports roll-backs, commits, and crash recovery for all transactions.
  • High Performance: Houses various fast load utilities along with Table Index Partitioning and Distinct Memory Caches that can ensure high performance.

Ways to Set up Oracle to MySQL Migration

Method 1: Manual Oracle to MySQL Migration

This method involves manually configuring the Oracle ODBC driver to set up Oracle to MySQL Migration.

Method 2: Using Hevo Data to Set up Oracle to MySQL Migration

Hevo provides a hassle-free solution and helps you directly transfer data from Oracle to MySQL without any intervention in an effortless manner. Hevo is fully-managed and completely automates the process of not only loading data from your desired source but also enriching the data and transforming it into an analysis-ready form without having to write a single line of code.

Get Started with Hevo for Free

Hevo’s pre-built integration with Oracle, MySQL along with 100+ Sources (including 30+ free Data Sources) will take full charge of the data transfer process, allowing you to set up Oracle to MySQL Migration seamlessly and focus solely on key business activities. 

Prerequisites for Oracle to MySQL Migration

You will require the following in order to set up Oracle to MySQL Migration properly:

  • Up and running setup of Windows Server 2008 with Oracle 11.2.0 or later.
  • MySQL database up and running.
  • Basic understanding of Databases and SQL Commands for use.

Methods to Set up Oracle to MySQL Migration

You can set up Oracle to MySQL Migration by implementing one of the following methods:

Method 1: Manual Oracle to MySQL Migration 

  • Login to MySQL with your credentials.
  • Launch the option for ODBC Connector data source.
  • Setup the Oracle ODBC data source to your MySQL database.
ODBC - Oracle to MySQL
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  • Fill in the required details such as Oracle Server name, user, password, and database to be connected. Provide a suitable ODBC connection name. Click on the Test button to test the connection. 
  • Configure listener.ora file from Oracle. Navigate to the Oracle installation directory, and you’ll find the listener.ora file under $ORACLE_HOME/NETWORK/ADMIN directory and add the following to it:
SID_LIST_LISTENER =
<Space>(SID_LIST=
<Space>(SID_DESC=
<Space>(SID_NAME=test)
<Space>(ORACLE_HOME=C:oracleproduct11.2.0dbhome_1)
<Space>(PROGRAM=dg4odbc)
)
)
  • Update the location of ORACLE_HOME if the path mentioned is not your installation path.
  • The above configuration tells Oracle to use the dg4odbc program.
  • If you face any issue, type dg4odbc in the command line to check if that program exists or not. If you get an error as “Program not recognized”, add $ORACLE_HOME/bin to your path variable and relaunch the command line to check. 
  • Configure inittest.ora. The file will be created itself when you create a new SID in the listener.ora file. The naming convention of the file is init + SID name. Configure data source / SID for dg4odbc. Add the following to your inittest.ora file:
HS_FDS_CONNECT_INFO = test
  • The above line specifies which ODBC connection to use. In this case, in step 1, you have created an ODBC connection to form the connection. 
  • Configure tnsnames.ora file. The file location is $ORACLE_HOME/NETWORK/ADMIN/TNSNAMES.ora. Add the following lines to the file:
TSLINK = 
(DESCRIPTION=
(ADDRESS=
(PROTOCOL=TCP)
(HOST=localhost)
(PORT=1521)
)
(CONNECT_DATA=
(SID=test)
)
(HS=OK)
)
  • In the above configuration, the HS=OK entry is very important, and you have to ensure that you have used the same SID as created on listener.ora file.
  • Restart the Oracle Service and the TNS Listener Service.
  • Once Oracle is up and running, create a database Link in Oracle. Log in to the Oracle database with DBA rights (e.g. as SYS) and create the database link using the following syntax:
create public database link link2mysqltest connect to "oracle" identified by "oracle" using 'TSTLINK';
  • Test database link and click on Finish.
  • Login to MySQL and run the below query which uses the test link created in the above steps.
select * from "test_table"@link2mysqltest

Limitations of Manual Oracle to MySQL Migration

The limitations of manually setting up Oracle to MySQL Migration are as follows:

  • Even though the user only has to make a few configuration changes in order to set up Oracle to MySQL Migration, it is difficult to get this migration right without deep Oracle administration knowledge. This might lead to Oracle throwing errors because of multiple configuration parameters that vary across different versions.
  • Even after getting the Oracle to MySQL Migration right, the connection, in reality, has many constraints and rough edges concerning the SQL queries that can be executed. You will run across problems with functions and data types that are not supported at source and target databases.

Method 2: Using Hevo Data to Set up Oracle to MySQL Migration

Hevo Logo

Hevo helps you directly transfer data from Oracle and various other sources to MySQL or any Business Intelligence tools, Data Warehouses, or a destination of your choice in a completely hassle-free & automated manner. Hevo is fully managed and completely automates the process of not only loading data from your desired source but also enriching the data and transforming it into an analysis-ready form without having to write a single line of code. Its fault-tolerant architecture ensures that the data is handled in a secure, consistent manner with zero data loss.

Sign up here for a 14-Day Free Trial!

Hevo takes care of all your data preprocessing needs required to set up Oracle to MySQL Migration and lets you focus on key business activities and draw a much powerful insight on how to generate more leads, retain customers, and take your business to new heights of profitability. It provides a consistent & reliable solution to manage data in real-time and always have analysis-ready data in your desired destination. 

The following steps can be implemented to set up Oracle to MySQL Migration using Hevo:

  • Configure Source: Connect Hevo Data with Oracle by providing a unique name for your Pipeline along with information about your Oracle database such as its name, IP Address, Port Number, Username, Password, etc.
Oracle Hevo Source - Oracle to MySQL
  • Integrate Data: Complete Oracle to MySQL Migration by providing your MySQL database credentials such as your authorized Username and Password, along with information about your Host IP Address and Port Number value. You will also need to provide a name for your database and a unique name for this destination.
MySQL Hevo Destination - Oracle to MySQL

Check out what makes Hevo amazing:

  • Real-Time Data Transfer: Hevo with its strong Integration with 100+ Sources (including 30+ Free Sources), allows you to transfer data quickly & efficiently. This ensures efficient utilization of bandwidth on both ends.
  • Data Transformation: It provides a simple interface to perfect, modify, and enrich the data you want to transfer. 
  • Secure: Hevo has a fault-tolerant architecture that ensures that the data is handled in a secure, consistent manner with zero data loss.
  • Tremendous Connector Availability: Hevo houses a large variety of connectors and lets you bring in data from numerous Marketing & SaaS applications, databases, etc. such as HubSpot, Marketo, MongoDB, Oracle, Salesforce, Redshift, etc. in an integrated and analysis-ready form.
  • Simplicity: Using Hevo is easy and intuitive, ensuring that your data is exported in just a few clicks. 
  • Completely Managed Platform: Hevo is fully managed. You need not invest time and effort to maintain or monitor the infrastructure involved in executing codes.
  • Automated Schema Management: Hevo takes away the tedious task of schema management & automatically detects schema of incoming data and maps it to the destination schema.
  • Live Support: The Hevo team is available round the clock to extend exceptional support to its customers through chat, email, and support calls.

Conclusion

This article provided you with a step-by-step guide on how you can set up Oracle to MySQL Migration manually or using Hevo. However, there are certain limitations associated with the manual method. If those limitations are not a concern to your operations, then using it is the best option but if it is, then you should consider using automated Data Integration platforms like Hevo.

Visit our Website to Explore Hevo

Hevo helps you directly transfer data from a source of your choice to a Data Warehouse, Business Intelligence, or desired destination in a fully automated and secure manner without having to write the code. It will make your life easier and make data migration hassle-free. It is User-Friendly, Reliable, and Secure.

Want to try Hevo?

Sign Up for a 14-day free trial and experience the feature-rich Hevo suite first hand. Have a look at our unbeatable pricing here, which will help you choose the right plan for you.

What are your thoughts on moving data from Oracle to MySQL? Let us know in the comments.

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