Database properties

Main Menu - Tools - Database properties

This option is used to view and alter database properties like sweep interval, cache buffers, database files, shadows and database shutdown.

Select a database, you can select a pre-configured database also.

Click Get info to show or alter database properties.

Shutdown and parameters

Here you can change performance database properties, do a database sweep or shutdown the database.

Database files

To manage database files no other users can be connected to the database. It's recommended you add a database file for every 2 Gigabytes of data you expect the database can grow. In most systems the largest file can be 2Gigabytes long on NT an Interbase file can be up to 4 Gigabytes.

To add a file you must specify the starting page of the new file, a default value is assigned to obtain an aproximate of 2 Gigabytes size depending on the page size.

Warning: If the last file grows until the limit (2 or 4Gigabytes), the transactions can fail until more files are added.

You can add shadow databases as mirrored databases, a hardware failure will activate the shadow database, so place the shadow database on a diferent phisical drive.

It's recommended to use hardware RAID mirroring instead database files, because hardware RAID usually improve performance.

Additional information

You can see database version (disk structure version...), memory usage for this database (reads, writes, cached pages) and size information (page size, allocation...). You can also view users connecteds and database statistics from here.

Service and Use command line tool

You can use Interbase services (Interbase 6 Superserver required) or you can use command line tool to change database properties.

See also:

Database management index

Database connection samples