Migrating to PostgreSQL

Migration pages for moving Oracle, MySQL and Microsoft SQL Server databases to PostgreSQL with documented open-source tools.

Migrate from Oracle to PostgreSQL

Moving Oracle databases to PostgreSQL with Ora2Pg: running the migration assessment report, converting PL/SQL to PL/pgSQL, planning the offline data load and validating data before cutover.

Migrate from MySQL to PostgreSQL

Moving MySQL or MariaDB schemas and data to PostgreSQL with pgloader or Ora2Pg: type mapping, schema discovery, on-the-fly transformations, application query changes and cutover planning.

Migrate from SQL Server to PostgreSQL

Moving Microsoft SQL Server databases to PostgreSQL with pgloader: automatic discovery of tables, indexes and keys, T-SQL code that must be rewritten by hand, licensing savings and a phased cutover.

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