Starting several SESAM/SQL DBHs

You can start more than one DBH on a single computer, regardless of whether they are independent or linked-in. You can manage parts of the DBH as share modules.

It is important to differentiate between the ability to start several DBHs from a multitasking operation. The first option refers to starting several databases and then having processes from different DBHs run. The second option provides the ability to use several DBH tasks running in parallel for task runs from one and the same database. See the “Core manual” for more detailed information.

Assigning and naming a DBH

To avoid conflicts, you should group related applications into configurations, thus separating them from those in other configurations (see the “Core manual”). You place a DBH in a configuration by assigning it the configuration name (see the description of the DBH option CONFIGURATION-NAME on "CONFIGURATION-NAME"). The configuration name must be unique on the computer.

You use the DBH option DBH-NAME (see "DBH-NAME") to assign the DBH name. The DBH name must be unique in the configuration. If it is not, name conflicts can occur between DBH-specific files that include the DBH name and configuration name in their names (the TA-LOG files, WA-LOG file and cursor files).