callback function after CRUD in sqlite

How can i implement a callback function to check whether a CRUD operation is finished or not ? In my app, i'm deleting a table first. After deleting, i want to do some specific tasks. if the delete process is done, i want to do something. If not done (exception occurs) then i want to do something else. Below is my deleting function code. Now what should i add/change to this to implement a callback function after deleting and checking whether the delete process is completed or not ?

function deleteTable(query) {
        var db = Titanium.Database.open('Horsecount');
        var isDeleted;
        try {
            db.execute('BEGIN');
            isDeleted = db.execute(query);
            db.execute('COMMIT');
        } catch(e) {
            alert(e);
        } finally {
            db.close();
        }
 
         if(isDeleted){
         Ti.API.info('success');
         }else {
         Ti.API.info('fail');
         }
    }

deleteTable('DELETE FROM ToDoList');