jodd-db/src/main/java/jodd/db/DbQueryBase.java
public long getGeneratedKey() {
		checkInitialized();
		final ResultSet rs = getGeneratedColumns();
		try {
			return DbUtil.getFirstLong(rs);
		} catch (SQLException sex) {
			throw new DbSqlException(this, "No generated key as long", sex);
		} finally {
			DbUtil.close(rs);
			resultSets.remove(rs);
			totalOpenResultSetCount--;
		}
	}
public long getGeneratedKey() {
		checkInitialized();
		final ResultSet rs = getGeneratedColumns();
		try {
			return DbUtil.getFirstLong(rs);
		} catch (SQLException sex) {
			throw new DbSqlException(this, "No generated key as long", sex);
		} finally {
			DbUtil.close(rs);
			resultSets.remove(rs);
			totalOpenResultSetCount--;
		}
	}
Returns generated key i.e. first generated column as <code>long</code>.