// from {table} where {idColumn} = {idVal})
String format = "select * from %s where %s = (select %s from %s where %s = %s )";
String tarTable = ORMConfigBeanUtil.getTable(tarClass);
String tarIdColumn = ORMConfigBeanUtil
.getIdColumn(tarClass);
String column = ann.mappedBy();
String sql = String.format(format, tarTable, tarIdColumn,
column, table, idColumn, idVal);
List<?> tarList = DAOFactory.getSelectDAO(dsName)
.selectBySQL(tarClass, sql);
if (tarList == null || tarList.size() == 0)