function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion
Hari N 20Hari N 20 

Generate records from one object to another using batch apex

Hi All,
I want to generate records from one object into another object. I have written a trigger for this and working fine.
I want this output in batch apex form
What ever I get the records in object1 today, I want a schedule batch apex that all records should get create in object2 at Midnight only.
How can I do this?
Please provide me syntax

Thanks in Advance

Hi Hari,

Batch Class:
global class ProcessRecords implements Database.Batchable<sObject> {
    global Database.QueryLocator start(Database.BatchableContext BC) {
        String query = 'SELECT Id,Name FROM Object1 where DAY_ONLY(CreatedDate) =';
        return Database.getQueryLocator(query);
    global void execute(Database.BatchableContext BC, List<Account> scope) {
     List<Object2> NewObjs=new List<Object2>();
         for(Object1 Obj1 : scope)
             Object2 Obj2=new Object2();
             Obj2.Name = Obj2.Name;      
         Insert NewObjs;
    global void finish(Database.BatchableContext BC) {

Shedulable class:
Global class ScheduleProcessRecords  implements Schedulable{

    global void execute(SchedulableContext SC) 
        ProcessRecords MUB = new ProcessRecords ();
Cron expression;
ScheduleProcessRecords  machinestatus = new ScheduleProcessRecords ();
String sch = '0 0 23 * * ?';
system.schedule('Process Records', sch, machinestatus);

Let me know if you have any issue.

Mark it as best answer if it works.

Hari N 20Hari N 20
Hi Thermo,
I have implemeted the same.
But, I am not able to see in apex jobs. Even record also not created

Have you executed cron expression in execute anonymous?If don't plese do that.
The code will run everyday at 11:00 PM.So you won't see results right away 

Hari N 20Hari N 20
Sure.. I will do that
Thank you
Hari N 20Hari N 20
Hi Thermo,
It is not working. I have changed scheduling time to 6 PM.
I checked after 6 PM. No record is created in Object2.
Please help me. 
Mahesh K 22Mahesh K 22
Hi Hari ,
Batch Apex Class:
global class BatchapexExmple implements database.Batchable<Sobject> {

    global database.QueryLocator start(database.BatchableContext bc){
        string query = 'select id,name,phone,CreatedDate from account where CreatedDate =Today';
        return database.getQueryLocator(query);
    global void execute(database.BatchableContext bc , list<account> acc ){
        list<contact> con = new list<contact>();
        for(account a : acc){
            contact c = new contact();
            c.LastName =;
            c.Phone =;
        insert con;
    global void finish(database.BatchableContext bc){

Schedulable apex Class:
global class ScheduableApex implements Schedulable{
    global void execute(schedulableContext sc){
        BatchapexExmple ba = new BatchapexExmple();

ScheduableApex sc2 = new ScheduableApex();
string str = '59 59 23  * * ?';
system.schedule('job2', str, sc2);