How can we schedule a Batch Apex Class in Salesforce?

Hi Sushant,

We use scheduler class to schedule batch class.

Example of a batch class:
global class BatchClass implements Database.Batchable<sObject>
{
global ExampleBatchClass(){
// Batch Constructor
}

// Start Method
global Database.QueryLocator start(Database.BatchableContext BC){
return Database.getQueryLocator(query);
}

// Execute Logic
global void execute(Database.BatchableContext BC, List<sObject> scope){
// Logic to be Executed batch wise
}

global void finish(Database.BatchableContext BC){
}

}

Example of a Scheduled Apex:

global class scheduledBatchable implements Schedulable{
global void execute(SchedulableContext sc) {
// Implement any logic to be scheduled

// We now call the batch class to be scheduled
ExampleBatchClass b = new ExampleBatchClass();

//Parameters of ExecuteBatch(context,BatchSize)
database.executebatch(b,10);
}
}

Schedule the class by executing anonymous

Finally now we can schedule the batch class, there are two ways by which we can schedule the batch class
1.From Setup—> Apex Classes –> Schedule Apex : but, here the minimum is one day/ 24 hours
By executing anonymous code from either developer console or apex, here the minimum is 1 hour

Code to be executed

// Cron EXP for hourly schedule
String CRON_EXP = ‘0 0 * * * ?’;
SheduledBatchable sch = new scheduledBatchable();
system.schedule(‘Hourly Example Batch Schedule job’, CRON_EXP, sch);

this may help you.

Thanks