Data Type Mapping and Compatibility

When migrating from MySQL to Oracle, ensure data types align between the two systems:

1. Numeric Data Types: Map INT to NUMBER, DECIMAL to NUMBER with precision/scale.
2. Character Data Types: Match VARCHAR to VARCHAR2, adjusting lengths if needed.
3. Date and Time Data Types: Align DATE, TIME, DATETIME to Oracle’s DATE, mindful of format differences.
4. Binary Data Types: Convert BLOB and TEXT to Oracle’s BLOB and CLOB.
5. Boolean Data Type: Translate MySQL’s BOOLEAN to Oracle’s NUMBER(1) with 0/1 values.
6. Custom and Enumerated Types: Manually convert MySQL custom types, considering Oracle support.
7. Special Considerations: Address any MySQL features lacking direct Oracle equivalents.

Migrating a database from MySQL to Oracle can be a complex yet rewarding endeavor, especially when transitioning between relational database management systems (RDBMS). This guide will explore the step-by-step process of migrating from MySQL to Oracle, covering key concepts, tools, and best practices to ensure a successful transition.