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@Sonali
public class BatchScheduler {
public static void scheduleBatch() { Datetime startTime = Datetime.newInstanceGmt(2023, 5, 4, 0, 0, 0); // Set the start time for the first batch for (Integer i = 1; i <= 5; i++) { MyBatch batch = new MyBatch(); batch.jobName = 'My Batch Job ⌗' + i; batch.query = 'SELECT Id FROM Account LIMIT 200 OFFSET ' + ((i - 1) * 200); System.schedule(batch.jobName, getCRONString(startTime), batch); startTime = startTime.addMinutes(30); // Schedule the next batch 30 minutes later } } private static String getCRONString(Datetime startTime) { return startTime.second() + ' ' + startTime.minute() + ' ' + startTime.hour() + ' ' + startTime.day() + ' ' + startTime.month() + ' ? ' + startTime.year(); }}Call the scheduleBatch method to schedule your batch job:
BatchScheduler.scheduleBatch();
This will schedule your batch job to process 1000 records in 5 chunks of size 200, with each chunk being processed 30 minutes after the previous one or you can increase the timer
