Migrating a database from MySQL to PostgreSQL can seem challenging, but with the right approach, it’s a smooth transition! Both are popular open-source RDBMS with rich sets of administration tools and programming APIs. However, PostgreSQL offers several advantages that often make it the preferred choice.
Although MySQL and PostgreSQL are both very popular open source RDBMS havingrich set of administration tools and programming APIs, the second DBMShas multiple important advantages over MySQL:
- PostgreSQL is fully compatible with ANSI SQL standard
- PostgreSQL supports several index types (B-tree, Hash, GiST and others) that used differentalgorithms
- PostgreSQL provides asynchronous commit capabilities
- PostgreSQL supports both synchronous and asynchronous models of replication
That is the main reason of why many organizations migrates their databases from MySQL to Postgres.
Steps for Database migration from MySQL to PostgreSQL
Database migration from MySQL to PostgreSQL is usually implementedaccording to extract-transform-load (ETL) concept that consists of the following steps:
- Table definitions are extract from MySQL database in form of CREATE-statements
- Those statements are converted into the target dialect of SQLand loaded into PostgreSQL database
- MySQL data is imported from the sourcedatabase into comma separate files (one file per table) as an intermediate storage
- The data is transformed to comply with PostgreSQL format and load it into the target database
- MySQL views, stored procedures and triggersare exported in form of SQL statements and source code
- Those statements and source code are converted into PostgreSQL format and imported in the destination database
- The most important step of the entire migration procedure: validate all entriesfrom Postgre SQL database to check that everything has been migrated properly
The brief description of MySQL to PostgreSQL migration listed above indicates this tedious procedure requires huge efforts when doing it manually. Also, it leads to high risk of data loss or corruption due to the human errors. That is why many database professionals use special software to simplify the migration process.
One of such tools is MySQL to PostgreSQL converter developed by Intelligent Converters, a software vendor specializing in database conversion, migration and synchronization since 2001.
The database migration tool has extremely high performance (about 20,000 records per second of average modern system) due to direct reading and writing data without any middle ware libraries or components. It supports all versions of MySQL and PostgreSQL including software-as-service variations.
Command line support can be used to automate and to script database migration. Also, MySQL to PostgreSQL converter allows merging and synchronizing MySQL data with existing PostgreSQL database.
Besides the specified basic features, the tool allows to filter MySQL data via SELECT queries. With this option it is possible to migrate particular columns and rows only or transform the data during the migration.
When it is necessary to change column type, name or attributes in the resulting database as well as exclude some columns from migration, MySQL to PostgreSQL converter provides a capability called “customcolumn mapping”.
If PostgreSQL server does not allow remote connection, MySQL to PostgreSQL converter provides option of exporting into SQL script. According to this scenario, MySQL tables are converted into a local file containing PostgreSQL statements to create tables with all indexes and constraints and fill them with the data. The script file can be loaded into PostgreSQL database viathe standard tools like psql or phpPgAdmin.
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Simplify Migration with MySQL to PostgreSQL Converter
One effective solution is the MySQL to PostgreSQL Converter by Intelligent Converters, a software vendor specializing in database conversion, migration, and synchronization since 2001.
Key Features:
- High Performance: Processes about 20,000 records per second on a modern system, thanks to direct data reading and writing (no middleware components).
- Wide Compatibility: Supports all versions of MySQL and PostgreSQL, including SaaS variations.
- Command Line Support: Automate and script your database migration.
- Data Synchronization: Merge and synchronize MySQL data with an existing PostgreSQL database.
Final Words:
Migrating from MySQL to PostgreSQL doesn’t have to be a daunting task. By leveraging the ETL approach and using powerful conversion tools like the MySQL to PostgreSQL Converter, you can ensure a fast, efficient, and error-free migration.
Whether you’re upgrading your tech stack or enhancing database performance, PostgreSQL offers the flexibility and reliability to take your data to the next level.
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