Lesson: 38 | Batch Apex Stateful

Code

Apex Class:

global class BatchAccountStateFul implements Database.Batchable<Sobject>, Database.Stateful {
  public Decimal AR = 0;
  global Database.QueryLocator start(Database.BatchableContext bc) {
    String query = 'Select Id from Account';
    return Database.getQueryLocator(query);
  }
  global void execute(Database.BatchableContext bc, List<SObject> scope) {
    for(sobject s :scope) {
      AR+=1;
        
        
    }
  }
  global void finish(Database.BatchableContext bc) {
    Account ac = new Account(Name='Batch Apex Stateful');
    ac.AnnualRevenue = AR;
    insert ac;
  }
}

Apex Code (Execution):

BatchAccountStateFul objA = new BatchAccountStateFul();
Database.executeBatch(objA,10);