How to get all child incidents number associated with particular Parent incident using Script ?

[Tejas16]

How to get all child incidents number associated with particular Parent incident using server side Script? 

[Raghav Sharma24 · Accepted solution]

Run below script in background script, it will print all child incidents.

var inc = new GlideRecord('incident');
inc.addQuery('parent', ' ');  // pass the sys_id of parent incident
inc.query();
while(inc.next())
{
gs.print(inc.number);  // it will print all child incident numbers
}

Please mark the answer correct/helpful accordingly.

[Tejas16]

Only Small change is there:

Replace parent with parent_incident.

[dmarpaka]

How write a background script in servicenow to get the parent and child incident records for the entire incident table in database and not just for one parent incident record