Types of IMS Databases

When it comes to IMS databases, there are primarily three main types:

1. Full Function Databases: These databases offer the complete set of IMS functionality, including hierarchical data organization and efficient index access.
2. HALDB (High Availability Large Database): HALDB databases are designed for high availability and scalability, supporting large datasets and providing robust disaster recovery capabilities.
3. HDAM (Hierarchical Direct Access Method) Databases: HDAM databases are optimized for direct access to data records, offering superior performance for key-based data retrieval operations.

Each type of IMS database has its own unique features and capabilities, catering to specific use cases and requirements.