oracle - SQL Query returns no rows -


i'm working on query list of computers have more 1 antivirus installed. unfortunately i'm unable query return anything. can see in screenshots below have setup data when query working result set contain data on devices 1, 2, , 3.

devices table

antivirus products table

here i've got currently:

select d.ip_address "ip address",        d.name "computer name",        av.name "antivirus name",        count(av.deviceid) "# of av installed" devices d join anti_virus_products av on d.deviceid = av.deviceid group d.ip_address, d.name, av.name having count(av.deviceid) > 1;

you need remove antivirus name av.name select , group by. including in results, group by create new row each computer , antivirus name -- because values create unique group.

select d.ip_address "ip address",        d.name "computer name",        count(av.deviceid) "# of av installed" devices d join anti_virus_products av on d.deviceid = av.deviceid group d.ip_address, d.name having count(av.deviceid) > 1;

update based on comment expand query list names of av software installed on devices:

you partition count function. couldn't find link oracle documentation this, sql server syntax over clause seems work oracle. see example query on sql fiddle

select d.ip_address "ip address",        d.name "computer name",        d.deviceid,        av.name "antivirus name",        count(*) on (partition  d.ip_address, d.name) "total # of av installed" devices d join anti_virus_products av on d.deviceid = av.deviceid group d.ip_address, d.name, d.deviceid, av.name;

this example query return 1 row each device , antivirus pair , include total number of av installed on device.

i'm not sure if solve problem, provides additional data you're looking for.


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