MySQL to Oracle Migration: Easy Steps 101

• June 9th, 2022

MySQL to Oracle_FI

Over the last few years, the amount of data collected by businesses has increased exponentially. This is because in every field data has been the major driving factor for a business’s success or growth. The data can be related to users’ interactions with products and services, customer behavior towards different product offerings, trends regarding different marketing KPIs, etc. This data is then further analyzed to derive insights. These insights lead to the strategy and decision-making of businesses. A variety of database management systems have been developed to manage this massive amount of data. Oracle and MySQL are two of the most popular Relational Database Management Systems (RDBMS).

MySQL is a popular Relational Database Management System (RDBMS) that is free and open source. MySQL, like other relational databases, stores data in tables comprised of rows and columns. Similarly, Oracle is a relational database management system that supports multiple models and is primarily intended for enterprise grid computing and data warehousing.

This article will introduce you to MySQL to Oracle database migration. It will further elaborate on MySQL, Oracle database, their key features, Oracle SQL Developer, the need for migrating database from MySQL to Oracle, and the prerequisites and steps followed to set up the MySQL to Oracle database migration.

 Read along to learn more about the migration process.

Table of Contents

What is MySQL?

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MySQL is a popular Relational Database Management System (RDBMS) for managing Relational Databases. It was introduced in 1995 and quickly became the go-to solution for DBMS-related queries. It uses SQL (Structured Query Language) to perform data operations such as creating, defining, updating, and modifying tables, as well as monitors and queries the database. SQL is the most popular language for accessing and managing records in Relational Databases. MySQL, supported by Oracle, is an open-source and free database software licensed under the GNU General Public License. It’s common in PHP programming and other web applications.

MySQL is based on the Client-Server model. In simple terms, it means that the MySQL database is typically run on a server, and data is accessed via network clients and workstations. The server responds to the clients’ Graphical User Interface (GUI) requests with the desired output. It works with a variety of operating systems and languages, including PHP, PERL, JAVA, C++, and C.

By paying for modeling capabilities, MySQL can also be used for commercial purposes. It is an easy-to-use platform with extensive support for connecting to other platforms. It is also compatible with a variety of operating systems such as Linux, Unix, and Windows. Even, it can be deployed both in the cloud and on-premises systems.

Key Features of MySQL

The key features of MySQL are as follows:

  • High Performance: MySQL is a powerful tool with high processing power and an easy-to-use interface. It also supports multiple clients and is accessible from anywhere.
  • Compatibility: MySQL is compatible with numerous other platforms. Its open-source nature allows for regular updates and the incorporation of newly developed integrations. It also guarantees low latency for data transfer and transactions.
  • Scalability: MySQL supports both up and downscaling in a dynamic manner. Its support for a variety of operating systems also improves its scalability. 
  • Open-Source: MySQL is open-source, and it guarantees that it will always be free to use. It allows you to tailor it to your specific requirements by leveraging Oracle’s Open-Source MySQL codebase. It has attracted a sizable community that regularly contributes to its documentation and online support.
  • Ease of Use: MySQL is compatible with a variety of programming languages. It also includes a set of simple tools for tasks like server administration, data analysis, and reporting. MySQL supports a wide variety of data structures, logical, numeric, and alphanumeric data, JSON and Geospatial data, date, and time data types, that enables it to work with a wide variety and diversity of datasets.
  • Data Access Control: In MySQL, the user will get complete control over the Data Access Control settings. User Account Management and Access Privilege Systems are powerful tools for managing and controlling who can see and access your MySQL data. MySQL raises the bar for its access settings with its Host-based Verification and Password Encryption features.

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What is Oracle Database?

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Oracle Database is a Relational Database Management System (RDBMS) created by Oracle. It is built on top of a relational database framework, and users can run SQL queries to access database objects directly. In simple terms,  Oracle Database is a structured collection of data that is typically stored electronically in a computer system. Because it is a scalable database management system, it is used by multinational corporations that store data across wide and local area networks. Oracle also has a well-established network component for facilitating its network communication.

You can use Oracle RDBMS to handle data and perform various operations such as creating tables, deleting data, updating data, etc. You can use standard SQL queries to access data from Oracle’s Relational Databases. It is also compatible with operating systems like Windows, Unix, Linus, and macOS. Oracle is always keen to improve and better its products, hence, Oracle products and services are updated with new features on a regular basis.

Key Features of Oracle Database

The key features of Oracle Database are as follows:

  • Availability: The Oracle Data Guard capability ensures high database availability. This feature allows you to use the secondary database as a backup of the primary database in the event of a failure. As a result, all common operations such as backups and partial failures do not prevent the database from being used.
  • Security: Oracle includes a mechanism for managing and accessing the database in order to maintain security. Because of the Oracle Advanced Security features, it provides high security. It includes two Oracle database security solutions: Transparent Data Encryption (TDE) and Data Redaction.
  • Scalability: Oracle Database includes features such as Portability and Real Application Cluster (RAC), which make it scalable based on its usage. In a clustered environment, Oracle includes capabilities such as rolling instance migrations, quality of service, application continuity, quality of service management, upgrading, and many more.
  • Performance: Oracle delivers high-performance thanks to optimization tools such as Oracle Advanced Compression, Oracle Database in Memory, Oracle Real Application Testing, and Oracle TimesTen Application-Tier Database Cache.
  • Cross-Platform Integration: Oracle supports and operates on all operating systems (OS), including Windows, Linux, macOS, Linux, and many others.
  • Analytics Solutions: Oracle Advanced Analytics and OLAP (Oracle Analytic Processing) can be used to perform analytical computations on business data in a fast and efficient manner.
  • Compliant with ACID Attributes: To ensure the Database’s integrity during transaction processing, Oracle DB provides ACID (Atomicity, Consistency, Isolation, and Durability) properties.

What is Oracle SQL Developer?

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Oracle SQL Developer is a free and open-source integrated development environment (IDE) created by Oracle. It simplifies Oracle Database development and management in both traditional and cloud deployments. Simply put, it enables database users and administrators to complete database tasks with fewer clicks and keystrokes. 

SQL Developer includes a worksheet for running queries and scripts, a reports interface, a database administration console for managing the database, a complete data modeling solution, and a migration platform for migrating your third-party databases to Oracle. Oracle SQL Developer offers three interfaces: desktop, browser, and command line. 

Oracle SQL Developer is also used for setting up the migration from MySQL to Oracle database.

Why Migrate from MySQL to Oracle Database?

The reasons for migrating from MySQL to Oracle database are as follows:

  • MySQL databases are only flexible for small and large businesses. It is why a wide variety of users want to migrate from MySQL to Oracle SQL database.
  • The MySQL database does not support integration with other email services. While the Oracle database supports numerous email service integrations. As a result, in many cases, it is necessary to migrate from MySQL to the Oracle database.
  • The storage space of MySQL is very low as compared to the Oracle SQL database.
  • People generally transfer their database from MySQL to Oracle since Oracle reduces the operations costs to a considerable amount.
  • In an Oracle database, all data types are maintained or stored in a single database.
  • In comparison to MySQL, the Oracle SQL database provides better identity management and user control hence may users opt for MySQL to Oracle migration.

Migrating data from MySQL to Oracle Database: Prerequisites

The prerequisites for setting up MySQL to Oracle Database migration are as follows:

  • Before setting up MySQL to Oracle migration, ensure that your environment complies with the requirements of your system.
  • Download and install Oracle SQL Developer.
  • Configure MySQL server to the client computer.
  • Download MySQL Java Database Connectivity Java Archive (JDBC JAR) for the required MySQL server version.
  • Make sure that the oracle user account has the required privileges to create, update, delete and manage permissions on tables.

Steps followed to Migrate data from MySQL to Oracle

The steps followed to migrate your database from MySQL to Oracle are as follows:

  • Step 1: Open MySQL server. Now, backup the MySQL server database which you want to migrate.
  • Step 2: Now, you can open the Oracle server. And, backup the Oracle database.
  • Step 3: Then, you can start the Oracle SQL Developer.
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  • Step 4: From the menu bar, click on the “Tools” option. Then, select the “Preferences” option.
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  • Step 5: Navigate the tree view and click on the “Data ModelerThird Party JDBC Drivers” option.
  • Step 6: You can specify the full path name of the MySQL JAR file location.
  • Step 7: Restart the Oracle SQL Developer.
  • Step 8: Now, you can create a connection to the MySQL database:
    • Navigate to the Connections tree view. Right-click on the root node. Select the “New Connection” option.
    • Click the “MySQL” tab. Specify all the access details of the MySQL server database.
    • Click on the “Test” button to ensure that the connection is successful.
    • Click on the “Save” button.
  • Step 9: Now, you can create a connection to the new Oracle database:
    • Navigate to the Connections tree view. Right-click on the root node. Select the “New Connection” option.
    • Click the “Oracle” tab. Specify all the access details of the Oracle server (including a superuser and database SID).
    • Click on the “Test” button to ensure that the connection is successful.
    • Click on the “Connect” button.
    • Navigate the “Connections” tree view to the list of database tables for the new Oracle connection. Delete all the existing tables and indexes so that all the tables are clean before the connection is established.
  • Step 10: In the SQL developer, go to the menu bar, and click on the “Tools” option. Now, select the “Migration” option. Then click the “Migrate” option.

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  • Step 11: Now, a wizard will be displayed. Go to the Repository page, and you can follow the steps to create a connection to the MySQL server.
    • Click on the “+” icon to create a new connection.
    • You can specify the access details for the MySQL server (including a superuser and SID).
    • Click on the “Test” button to ensure a successful connection.
    • Click on the “Save” button. Then, click on the “Next” option.
  • Step 12: On the Project page, specify the access details and click on the “Next” button.
  • Step 13: Navigate to the Source Database page, and select the Mode to “Online”. Select the “MySQL connection” that you have created as the source database connection. 
  • Step 14: Then click on the “Next” button.
  • Step 15: Navigate to the Capture page. Select the MySQL database. Then it will appear in the list on the right. Click on the “Next” button.
  • Step 16: Next on the Convert page that appears, you can accept default settings by clicking on the “Next” button.
  • Step 17: On the Target Database page that appears, set the Mode to “Online”.
  • Step 18: Select the Oracle connection that you had created for the newer product version as the target database connection. 
  • Step 19: Clear the “drop target objects” checkbox. Then, click on the “Next” button.
  • Step 20: On the Move Data page that appears, select the “MySQL Connection” of the older version as the source database connection. Then, click on the “Next” button.
  • Step 21: On the Summary page that appears, you can verify all the details and click on the “Finish” button.
  • Step 22: You can modify the names of the indexes in the database according to your need:
    • In the Connections tree view, you can navigate to the Oracle connection. Select the “open SQL worksheet” option.
    • You can rename the indexes with truncated names.
    • You can set the default value for each column for each table in the database.

Conclusion

In this article, you learned about MySQL to Oracle Database migration. This article also focused on MySQL, Oracle database, their key features, Oracle SQL Developer, the need for migrating database from MySQL to Oracle, and the prerequisites and steps followed to set up the MySQL to Oracle database migration.

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