Client/Server Database Overview
RDM Server is Raima’s extremely powerful Client/Server database management system. It is perfectly designed for business-critical applications that need a higher degree of server horsepower that provides greater concurrency, fine granularity of locking, a dynamic runtime architecture with built-in encryption for security and a complete and extendable SQL implementation.
This database server provides C/C++ and SQL APIs and supports both relational and network data models. Databases can be disk-resident, memory resident or a hybrid. RDM Server implements multi-user row-level locking, hot database backup and a fully ACID-compliant transaction logging system with automatic crash recovery. The database server’s library can optionally be run in process with the application, eliminating client/server remote procedure calls. RDM Server is supported on most 32- and 64-bit enterprise and RTOS operating systems, and are used in a wide range of applications for network management systems, medical equipment, financial services, telecommunication systems and more.
The database server supports signed and unsigned integer (8-, 16-, 32- and 64-bit), character string (UTF-8 and Unicode), floating point (32- and 64-bit), BLOB (binary large object), BCD (Binary Coded Decimal), date, time and timestamp. In also has native C/C++ support for structs and multi-dimensional arrays based on the list of base types, above.
Disk Resident, In-Memory or Hybrid Data Storage
Database servers can be disk resident, memory resident or a hybrid. The data definition language (DDL) supports mixing different storage types in order to optimizeperformance and manage data persistence.
Active or Passive Replication maintains an identical copy of your database for application failover. The sub-system implements an asynchronous single master, multi-slave replication engine based on its client–server transports (including TCP/IP).
Server Extensions: Custom Code
Customize your code by using Server Extensions to run native code within the Server process space. This significantly reducesn RPC overhead
andallows your customize dfunctions to be available to all users within your application family.