在Hibernate中执行本机SQL查询时出现的问题

Question

我有一个需要执行的SQL查询，但是由于Hibernate，我在执行时看到了一些问题。

我的查询设置为属性键- sampleQuery，如下所示

SELECT * FROM (SELECT lcl.line_nr line_nr, lcl.LINE_NR_SHRT_DESC_TXT LINE_NR_SHRT_DESC_TXT, mf.FSC_CD FSC_CD, mf.LCL_PRFL_CD LCL_PRFL_CD, NVL(mfi.SML_img_mrktg_fsc_path_txt, NVL (mfi.SML_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS small, NVL (mfi.lrg_img_mrktg_fsc_path_txt, NVL(mfi.LRG_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS large, NVL (mfi.XL_img_mrktg_fsc_path_txt, NVL (mfi.XL_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS xl FROM lcl_line_nr_lang lcl, mrkt_fsc mf, mrkt_fsc_img mfi WHERE lcl.mrkt_id = :mrkt_id AND lcl.lang_cd =:lang_cd AND lcl.cmpgn_nr =:cmpgn_nr AND lcl.cmpgn_yr_nr =:cmpgn_yr_nr AND lcl.mrkt_id = mf.mrkt_id AND lcl.item_fsc_nr = mf.item_fsc_nr AND mf.mrkt_id = mfi.mrkt_id(+)AND mf.mrkt_fsc_id = mfi.mrkt_fsc_id(+)) a WHERE (a.large = '' OR a.large IS NULL OR a.xl = '' OR a.xl IS NULL OR a.small = '' OR a.small IS NULL)

DAOImpl类-我试着像这样执行它-

            try
            {
            String queryString =appQueryLoad.getProperty("sampleQuery");
            Query fetchQuery=sessionODS.createSQLQuery(queryString);
            logger.info("Query to fetch ctgry details :"+queryString);

            fetchQuery.setParameter("mrkt_id",imt.getMrktId());
            fetchQuery.setParameter("cmpgn_nr","1");
            fetchQuery.setParameter("cmpgn_yr_nr","2014");
            fetchQuery.setParameter("lang_cd","uk_UK");

            fetchQuery.setCacheable(true);
            logger.debug(fetchQuery.list());
            sessionODS.getTransaction().commit();
            }
            catch(Exception e){
            logger.error("Error in retrieving the Shades details",e);
            sessionODS.getTransaction().rollback();
            }

现在的问题是在execute语句中，当我调试时，logger.debug(fetchQuery.list());正在抛出一个异常，如下所示。

Hibernate:SELECT * FROM (SELECT lcl.line_nr line_nr, lcl.LINE_NR_SHRT_DESC_TXT LINE_NR_SHRT_DESC_TXT, mf.FSC_CD FSC_CD, mf.LCL_PRFL_CD LCL_PRFL_CD, NVL(mfi.SML_img_mrktg_fsc_path_txt, NVL (mfi.SML_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS small, NVL (mfi.lrg_img_mrktg_fsc_path_txt, NVL(mfi.LRG_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS large, NVL (mfi.XL_img_mrktg_fsc_path_txt, NVL (mfi.XL_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS xl FROM lcl_line_nr_lang lcl, mrkt_fsc mf, mrkt_fsc_img mfi WHERE lcl.mrkt_id = :mrkt_id AND lcl.lang_cd =:lang_cd AND lcl.cmpgn_nr =:cmpgn_nr AND lcl.cmpgn_yr_nr =:cmpgn_yr_nr AND lcl.mrkt_id = mf.mrkt_id AND lcl.item_fsc_nr = mf.item_fsc_nr AND mf.mrkt_id = mfi.mrkt_id(+)AND mf.mrkt_fsc_id = mfi.mrkt_fsc_id(+)) a WHERE (a.large = '' OR a.large IS NULL OR a.xl = '' OR a.xl IS NULL OR a.small = '' OR a.small IS NULL)

我试图在我的蟾蜍上运行这个程序，结果得到了1行作为传递参数的结果，但是在Java中，我在执行时看到了问题。你能帮我执行这个有很多连接的查询吗？

如果需要更多的细节，请告诉我。

技术信息:我在Hibernate中使用Struts-2框架。

Answer 1

final Session session = sessionFactory.openSession();
String str =  " SELECT * FROM (SELECT lcl.line_nr line_nr, lcl.LINE_NR_SHRT_DESC_TXT LINE_NR_SHRT_DESC_TXT, mf.FSC_CD FSC_CD, mf.LCL_PRFL_CD LCL_PRFL_CD, NVL(mfi.SML_img_mrktg_fsc_path_txt, NVL (mfi.SML_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS small, NVL (mfi.lrg_img_mrktg_fsc_path_txt, NVL(mfi.LRG_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS large, NVL (mfi.XL_img_mrktg_fsc_path_txt, NVL (mfi.XL_IMG_MRKTG_CNCPT_PATH_TXT, '')) AS xl FROM lcl_line_nr_lang lcl, mrkt_fsc mf, mrkt_fsc_img mfi WHERE lcl.mrkt_id = mrkt_id AND lcl.lang_cd = lang_cd AND lcl.cmpgn_nr = cmpgn_nr AND lcl.cmpgn_yr_nr = cmpgn_yr_nr AND lcl.mrkt_id = mf.mrkt_id AND lcl.item_fsc_nr = mf.item_fsc_nr AND mf.mrkt_id = mfi.mrkt_id(+)AND mf.mrkt_fsc_id = mfi.mrkt_fsc_id(+)) a WHERE (a.large = '' OR a.large IS NULL OR a.xl = '' OR a.xl IS NULL OR a.small = '' OR a.small IS NULL)" ;
SQLQuery q = session.createSQLQuery(str);
List<Object[]> entities = q.list();
for (Object[] entity : entities) {
    for (Object entityCol : entity) {
        System.out.print(" " + entityCol);
    }
    System.out.println("");
}

试试这个。我希望这对你有帮助。