Multip services in oracle 11g

Question

Hi Friends,
In oracle 11g single instance, are there a max number of services? some DAB likes to create different service to handle different task. In this way, any potential issue/risk with performance will be linked?
Thanks
newdba

Answer 1

To answer the question "In oracle 11g single instance, are there a max number of services?"
The maximum number of services that can be created will depend on DB version, it is a hidden parameter.
But to check what you currently have set you have to query for the the hidden parameter _max_services, and to do that u can use the following:
select a.ksppinm name, b.ksppstvl value, b.ksppstdf deflt,
decode (a.ksppity, 1, 'boolean', 2, 'string', 3, 'number', 4, 'file', a.ksppity) type,
a.ksppdesc description
from
sys.x$ksppi a,
sys.x$ksppcv b
where a.indx = b.indx
and a.ksppinm like '\_max_service%' escape '\'
order by name;