code: public int executeUpdateDeleteQuery(String cqlQuery) {
          if (log.isDebugEnabled()) {
              log.debug("Executing cql query {}.", cqlQuery);
          }
          try {
              CqlResult result = (CqlResult) executeCQLQuery(cqlQuery, true);
              return result.getNum();
          } catch (Exception e) {
              log.error("Error while executing updated query: {}, Caused by: . ", cqlQuery, e);
              return 0;
          }
  
      }
docs: Executes Update/ Delete CQL query.
  
  @param cqlQuery
  the cql query
  @return the int