Hi,

here is batch code which is executing currently showing as zero records processed in  AysncApexJob , no errors though ,what i want is whenever batch find Zero record in SOQL of start method then batch should fail with exception or show error message 
 

global class CaseCopyBatch implements Database.Batchable<sObject>, Database.Stateful {
					private List<Batch_Case_Type__c> processedRecords;
				global Database.QueryLocator start(Database.BatchableContext BC) {
					processedRecords = new List<Batch_Case_Type__c>();
					// collect the batches of records or objects to be passed to execute        
					String query = 'SELECT Case__c, Lvl_1__c, Lvl_2__c,Lvl_3__c,UniqueGUID__c  FROM Batch_Case_Type__c WHERE createddate = today AND IsProcessed__c = false';
					return Database.getQueryLocator(query);
				}
				global void execute(Database.BatchableContext BC, List<Batch_Case_Type__c> exeList) {   
					// process each batch of records
					List<Case_Type__c> listCTD = new List<Case_Type__c>();
				   
					for(Batch_Case_Type__c exe : exeList)
					{        
						listCTD.add(new Case_Type__c(Case__c=exe.Case__c,Lvl_1__c=exe.Lvl_1__c,Lvl_2__c=exe.Lvl_2__c,Lvl_3__c=exe.Lvl_3__c,ERTUniqueGUID__c=exe.UniqueGUID__c));
					   exe.IsProcessed__c = true;    
					}
					try {
						
						insert listCTD;
						//only successful batches will be processed 
						processedRecords.addAll(exeList);
						update processedRecords;
					} catch(Exception e) {
						System.debug(e);
					}
				}   
				global void finish(Database.BatchableContext BC) {
				   
				  
				}
				}

Your response is highly appreciated

Regards
Fiona