How to get all records of sfobject including records in recycle bin of salesforce and undelete the records?
List objlst = [select id,isdeleted from sfobject ALL ROWS]; //Just add ALL ROWS at the end of SOQL, it retrieves all the records including deleted records in recycle bin:
System.debug('objlst==========' + objlst);
for (sfobject rec: objlst) {
Database.UndeleteResult result = Database.Undelete(rec, false);
}