How to Find whether Application is Under Maintenance Mode from SQLPLUS

Query to know the status of maintenance mode:

select fnd_profile.value('APPS_MAINTENANCE_MODE') from dual;

IF THE STATUS
“MAINT” = MAINTENANCE MODE HAS BEEN ENABLED AND THE USERS WILL NOT BE ABLE TO LOGIN.
“NORMAL” = MAINTENANCE MODE HAS BEEN DE-ACTIVATED AND THE USERS WILL BE ABLE TO LOGIN.

ENABLE maintenance mode from SQLPLUS Session:

sqlplus -s apps/apps @$AD_TOP/patch/115/sql/adsetmmd.sql ENABLE

DISABLE  maintenance mode from SQLPLUS Session:

sqlplus -s apps/apps @$AD_TOP/patch/115/sql/adsetmmd.sql DISABLE


SQL> select fnd_profile.value('APPS_MAINTENANCE_MODE') from dual;

FND_PROFILE.VALUE('APPS_MAINTENANCE_MODE')
--------------------------------------------------------------------------------
NORMAL