Increase in Number of Databases

A larger number of databases can now be used in a project; the new limit is 250,000. New database numbers from 250,001 to 255,000 are reserved for AVEVA use, as well as those from 7,001 to 8,000.

It is now easier to avoid database number conflicts when databases are shared between projects. These conflicts may be avoided by creating DBRange elements to define the range of database numbers available for use in each of the projects. The database numbers may be between 10,000 and 250,000; these numbers may also be used explicitly in a project that does not use DBRanges.

A DBRange may be created in Admin under the STAT element in the SYSTEM or GLOBAL database and defines the start DBRBEG and end DBREND of a range of numbers.

There is a new "UNIQUE" option for the CREATE DB command to allow the user to create the next database in the defined range for the project; a new pseudo-attribute NXTDBU gives the next database number within the range.

For full details, please refer to the Administrator User Guide and Command Reference Manual.