Hi Naveen,
As harishdasari has mentioned above, you can search that way. Just one input regarding searching Scheduled Imports. You can directly search in the Table Transform Map table by navigating System Import Sets-->Administration-->Transform Maps-->Search with the Target table. Once you get the result, do search in the Data Source table whether those transform maps are being used.
Regarding Scheduled Job, you need to search in the below ways:
1. Type sysauto_script.LIST in your application navigation search bar and set the filter as below with the table name. Like I have searched with the User table name. Once you get the result, check whether the script in updating/inserting anything on the table.
2. Also, any server side script may be triggered by System Scheduler-->Scheduled job. Here the script gets called by it's name in the Job Context field. You may take the reference of OOB Scheduled Job named 'Autoclose Incidents' where the Business rule 'incident autoclose' gets called. Now if in the called Script the table(s) get updated/inserted, you need to take count of that Scheduled job too.
I hope this helps. Please mark correct/helpful based on impact
