Installation of CA Service Catalog(SC) on an already installed CA Service Desk Manager(SDM) environment.
During the installation, an automatic integration will take place.
And (sometimes), the auto integration ends in error.
Client needs/wants to integrate the products manually anyway.
So, it is best to avoid/skip the auto-integration between

N/A

Windows.

Information related to this is stored in mdb database, al_cdb_configurationparameters table.

The initial query to execute for visibility of current settings:
SELECT componentkey,machinename,configkey,configvalue,productcode,last_update_date 
FROM al_cdb_configurationparameters
WHERE configkey like '%integr%' 

And check for column(s) with .is. (e.g. slcm.sdm.is.integrated) and set these to 1. 
To possibly skip the integration. 

Another configkey to check then is: sdm.allow.integration
It appears to be set to 1.
And after updating this to 0, the installation went through properly, without auto integration of SC with SDM.

The query to execute to change the value from 1 to 0 then is:
update al_cdb_configurationparameters
set sdm.allow.integration = 0
where configkey = 'sdm.allow.integration'