The Data Base Handler, which is abbreviated to SESAM/SQL DBH or just DBH, is the central component for the control, execution and monitoring of database operation. Access to SESAM/SQL databases is impossible without the DBH.
The starting and termination of the DBH and the monitoring and administration of the current DBH session are tasks taken care of by SESAM/SQL system administrators.
This chapter provides basic information on database operation. It is intended specifically for readers who are interested in SESAM/SQL system administration.
The sections in this chapter cover the following subjects:
the tasks and potential applications of the DBH
communication between the application program, the DBH and the database
The combining of applications in configurations
Distributed processing with SESAM/SQL DCN
DBH files
means of increasing throughput
means of monitoring and control available to system administrators.