Returns the type and version of the primary data server and the JDBC driver.
pdb_version
When pdb_version is invoked, it returns primary data server vendor name and version and the JDBC driver name and version for the primary database.
If the primary database connection is down or not configured, the pdb_version command returns an error.
The pdb_version command is valid when the Mirror Replication Agent instance is in either Admin or Replicating state.
