Execute Anonymous Batch
Author: Enrico Murru
Read details @ http://blog.enree.co/2017/08/salesforce-apex-execute-anonymous-batch.html
The ID_LIST global variable is of type List<ID> and contains all the IDs provided by the Batch's scope.
Remember to configure a named credential called EXECUTE_ANONYMOUS that points to your instance (and that is logged with a valid session ID).
Example of usage:
String script = 'List<Account> acList = [Select Id, Name From Account Where Id IN :ID_LIST];'
+'\nfor(Account acc : acList){'
+'\n acc.BillingCity = \'Gnite City\';'
+'\n}'
+'\n update acList;';
String query = 'Select Id From Account Where BillingCity != \'Gnite City\'';
Boolean sendEmailOnFinish = true;
ExecuteAnonymousBatch batch = new ExecuteAnonymousBatch(query, script, sendEmailOnFinish);
Database.executeBatch(batch, 100);The job sends a completion email with all eventual errors on finish.
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