How to update 100 incidents records at a time with different assignment group

[sahana1998]

I want to update 100 incident records at a time with different assignment group .

is there any option to update .

Can any one please help on this.

[Weird]

Well it depends on your requirement, but on list view you can just change your view to show 100 records.  Click the hamburger icon and select show -> 100 rows per page.
Then use the filter to get all the incidents that you need. For example "number is one of XXX,YYY...".

Now in the list if you press CTRL and click a field with your left mouse button you can select multiple record's fields. If you hold the mouse button and move down it will select all the records you move over. You can also just hold CTRL and click each record that you want to update.
That way you can change the group on the list for all the records you want to. However you won't be able to update group 1 for X tickets and group 2 for Y tickets at the same time, but I assume that's not the issue here.

Try it in dev first on some demo tickets.

[sahana1998]

Because i have to update more than 100 incidents records 

In script i guess have to mention all incident numbers and assignment group (sys_id)

[Mark Manders]

You haven't shared if there is any logic in the updates you need to do. Within a script you could say things like 'if assignment group = xyz, update this field to that', 'if it is lmn, update this field to that'. 

But since we don't know about the updates you need to do, it's hard to help out. Just don't use a script with the numbers or sys_id's, because it will take ages. Make the selection on the records and update them with your logic (either on the list or through script, but that depends on your logic).