This SQL statement is executed whenever Radiator needs the
number of sessions currently logged on to a particular NAS. This is only
required if HandleAscendAccessEventRequest is defined and an
Ascend-Access-Event-Request is received. %1 is replaced by the NAS IP
address. SQL bind variables are supported.
It defaults
to:
select ACCTSESSIONID from RADONLINE where NASIDENTIFIER='%0'