1

我的 XML 映射文件中有一个属性，例如

<property name="CreatedByLogin"  formula="(select x.fst_name || ' ' || x.last_name from sebl_dev.S_CONTACT x where x.ROW_ID=CREATED_BY)" type="String" />

我想在这个特定的名字上使用一个投影，比如

.Add(Projections.Property("CreatedByLogin"), "CreatedByLogin")

我确实得到了 Oracle 异常。

有没有办法对使用公式声明的属性进行投影？

我生成的 SQL 是

select
     *
from (
     SELECT
         this_.ROW_ID as y0_,
         this_.CREATED as y1_,
         this_.CREATED_BY as y2_,
         this_.STATUS as y3_,
         this_.PSR_NUM as y4_,
         this_.ORDER_ID as y5_,
         this_.WFM_ID as y6_,
         this_.VIRTUAL_SS_ID as y7_,
         this_.VERIFIED_WITH as y8_,
         this_.REQ_DUE_DATE as y9_,
         this_.TYPE as y10_,
         account1_.NAME as y11_,
         account1_.OU_NUM as y12_,
         this_.DESCRIPTION as y13_,
         account1_.MARKET_TYPE_CD as y14_,
         account1_.X_SALES_CHANNEL as y15_,
         this_.QUOTE_ID as y16_,
         (
            select
                 x.fst_name || ' ' || x.last_name
            from sebl_dev.S_CONTACT x
            where x.ROW_ID=this_.CREATED_BY)
         as y17_,
         (
            select
                 x.fst_name || ' ' || x.last_name
            from sebl_dev.S_CONTACT x
            where x.ROW_ID=this_.LAST_UPD_BY)
         as y18_,
         serviceacc2_.INTEGRATION_ID as y19_,
         serviceacc2_.NAME as y20_,
         accountadd3_.ADDR as y21_,
         accountadd3_.ADDR_LINE_2 as y22_,
         accountadd3_.CITY as y23_,
         accountadd3_.STATE as y24_,
         accountadd3_.ZIPCODE as y25_
        FROM XOOE.XO_SS_HEADER this_
inner join XOOE.XO_SS_DETAILS this_1_
on this_.ROW_ID=this_1_.ROW_ID
 inner join sebl_dev.S_ORG_EXT account1_
on this_.CUST_ACCNT_ID=account1_.ROW_ID
left outer join sebl_dev.S_org_ext_x account1_1_
on account1_.ROW_ID=account1_1_.Row_id
 left outer join sebl_dev.S_ORG_EXT_UTX account1_2_
on account1_.ROW_ID=account1_2_.PAR_ROW_ID
inner join sebl_dev.S_ORG_EXT serviceacc2_ on this_.SERV_ACCNT_ID=serviceacc2_.ROW_ID
 left outer join sebl_dev.S_org_ext_x serviceacc2_1_
 on serviceacc2_.ROW_ID=serviceacc2_1_.Row_id
left outer join sebl_dev.S_ORG_EXT_UTX serviceacc2_2_
 on serviceacc2_.ROW_ID=serviceacc2_2_.PAR_ROW_ID
 inner join sebl_dev.S_ADDR_PER accountadd3_
on serviceacc2_.PR_ADDR_ID=accountadd3_.ROW_ID
        WHERE this_.TYPE = :p0 )

    where rownum <= :p1

结果异常是

InnerException    {"ORA-01445: cannot select ROWID from, or sample, a join view without a key-preserved table"}    System.Exception {Oracle.DataAccess.Client.OracleException}
4

2 回答 2

0

这是 Oracle 版本 9、10 和 11 的早期版本中的一个已知错误。它显然已在最新版本中修复。

该问题是由这些旧版本处理 SQL-92 样式连接的方式中的错误引起的。因此，如果无法升级，您可以使用旧式 SQL-89 连接来解决这些问题。例如，一个 INNER JOIN：

SELECT column
FROM table1 t1, table2 t2
WHERE t1.pk = t2.fk

另一个例子，这次是 LEFT JOIN：

SELECT column
FROM table1 t1, table2 t2
WHERE t1.pk = t2.fk(+)

更多信息：

http://awads.net/wp/2007/06/14/when-ansi-sql-join-syntax-does-not-work-in-oracle/

于 2012-01-25T04:28:00.393 回答
0

我最好的猜测：

您正在从没有定义键的表中选择一个键。您将不得不弄清楚它是哪个表，并将主键字段添加到其中。

于 2009-06-01T22:28:32.607 回答