Differences among Oracle and MySQL

Difference between MySQL and Oracle - javatpoint

If you are planning a database migration from Oracle to MySQL or vice versa, make sure that you learn about all advantages and weakness of each database management system before beginning migration. This whitepaper explores how Oracle and MySQL may be advantageous over each other in numerous features.

Oracle Pros over MySQL

  • High degree of security. In Oracle you can have not only custom roles but also custom privileges, whilst MySQL is only capable of supplying roles.
  • There are options for outside authentication in Oracle which include LDAP, Active Directory etc. MySQL only provides built-in authentication method.
  • Oracle supports full-textual content seek. In MySQL only non-transactional storages may be fully searched.
  • In case of critical system error or data damages, Oracle provides more comprehensive and flexible recovery options than MySQL does.
  • Oracle is supplied with a couple of IDEs and complicated tools for debugging purposes.
  • It also can be included into Business Intelligence projects easily.

Oracle Cons

  • As most commercial database management systems, Oracle comes with high licensing and deployment fee while MySQL is much less expensive and is available under open-source license
  • Oracle is more complicated system and requiring more efforts to install and administrate database than MySQL

MySQL Pros over Oracle

  • MySQL comes under open-source license and its enterprise options are less expensive than Oracle.
  • Although small databases can be developed quickly and easily with MySQL, it provides sufficient capabilities to handle large and complex data warehouses.
  • MySQL requires less hardware resources compared to Oracle
  • The cost of administration and development is more affordable than Oracle
  • Different tables that belong to the same database may use distinguished storage engines
  • Being a powerful option of architecture, storage engines allow to optimize database on different aspects (like size, speed of search, transactional safe and others)

MySQL Cons

  • MySQL does not support functional columns calculated from an expression.
  • Statements of types “ALTER” and “CREATE” comes as non-transactional.
  • MySQL does not support materialized views.
  • Recursive queries are not supported.
  • MySQL does not support roll-back recovery, only roll-forward is available

The comparison above should help to recognize which of these two DBMS better fits your needs. If you make decision to migrate a database from Oracle to MySQL or backward, it is reasonable to use special software to automate the procedure.

Intelligent Converters, a company specializing in database migration and synchronization since 2001, offers both Oracle to MySQL and MySQL to Oracle converters.

Those programs provide all capabilities which are expected for advanced migration tools:

  • Support for all modern versions of source and target DBMS
  • Support for all generic database objects
  • Option to filter data being migrated using SELECT-queries
  • Option to customize object properties during conversion process
  • Command line support

As every software tool provided by Intelligent Converters, Oracle to MySQL and backward converters come with 24/7 support, 1 year subscription for updates and can be customized according to customer requirements.