When you create a Database Table instance for a class, the table name equals the Couchbase bucket.

1. If the database platform of the additional database differs from the database platform of Pega Platform, or does not use postgresSQL, define Pega Platform the database driver. For more information, see Defining the database driver.
2. In the header of Dev Studio, click CreateSysAdminDatabase.
3. In the Create database tab, enter a short description, and in the Database field, enter a name for the external database.
   The database name is case-sensitive.
4. Click Create and open.
5. Optional: To indicate the system of record, in the Integration system field, press the Down arrow key, and then select the name of the integration system that you want to associate with this database.
   The value that you select is for informational purposes only, and does not affect the behavior of the database instance. You can use this value to organize rules for integration connectors, data types, and sources for data pages.
6. In the How to connect list, click Use Cassandra configuration listed below.
7. In the Cassandra Hostnames and Ports section, click Add Host, and then enter a hostname or IP address and port for a node in the Cassandra cluster.
   You can specify multiple hosts.
8. In the Cassandra Cluster section, enter the Keyspace, Username, and Password that you use when connecting to the database.
9. Optional: To specify the names of other database instances that views in this database can reach, on the Advanced tab, define the database parameters:
   1. In the Database Name list, click the Add item icon.
   2. In the Database Name field, press the Down arrow key, and then select the name of a database instance that views in the external database need to access.
   For example: This database instance describes the EXTERNAL1 database. To configure your application to access a view in EXTERNAL1 that joins data from the DATA1 and DATA2 databases, define database instances for DATA1 and DATA2, and then list DATA1 and DATA2 as other databases on the database instance for EXTERNAL1,
10. Click Save.
11. Optional: To test the database connection, on the Database tab, click Test connection.
    This test does not test the administrative user that you specify.
    1. Diagnostic information appears in a new window if the test fails.
    2. Modify the database instance until the test succeeds.