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Database Resources

Database resources control access to Caché databases. A database stores the name of its associated resource in its label block.

When you create a new database using the Management Portal, the wizard forces you to either create a new resource for the database or choose an existing resource. You can also use the Management Portal to change the resource associated with a database.

There are several rules governing Caché databases and their resources:

  • All mounted databases must have some associated resource.

    • If you attempt to mount an existing database with no resource name, Caché assigns the default resource, %DB_%DEFAULT, to the database.

    • If you explicitly attempt to mount a database with an unknown (not in the security system) or invalid resource name, Caché prompts you to either change the name or create the resource.

    • An automatic attempt to mount a database with an unknown or invalid resource name fails with an error.

  • All database resource names must begin with “%DB_”. For custom resources the first character after the underscore should not be “%”.

Here are the default roles and permissions associated with the %DB_%DEFAULT resource:

%DB_%DEFAULT Roles and Permissions
Role Permissions
%Developer READ,WRITE

You can change the roles and permissions associated with the %DB_%DEFAULT resource, but you cannot delete the resource.

For more information on database resources, read Database Resources in the Assets and Resources section of the Caché Security Administration Guide.

For more information on creating and configuring databases, read Configuring Databases in the Configuring Caché section of the Caché System Administration Guide.

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