code: @Override
  	public int[] executeBatch() throws SQLException {
  		Split s = prepare(batchSql);
  		try {
  			return stmt.executeBatch();
  		} finally {
  			finish(s);
  		}
  	}
docs: Measure and execute SQL operation.
  
  @return an array of update counts containing one element for each
  command in the batch.
  @throws java.sql.SQLException if real calls fails