How to correctly monitor a Database Oracle

Can u please try this..

    gtm monitor oracle /Common/monitor_oracle_test {
    count 1
    database (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=%node_ip%)(PORT=%node_port%))(CONNECT_DATA=
    (SERVICE_NAME=PQR_ONLINE_XYZ))(SERVER=dedicated))
debug no
defaults-from /Common/oracle
description 
destination *:*
interval 30
password xxxxx
probe-timeout 30
recv PRIMARY
recv-column 1
recv-row 1
send "SELECT database_role FROM database_name"
timeout 91
username CHECK_DB_ROLE_YES
}