得到了多项序列

时间:2015-04-29 09:45:39

标签: oracle xmltable oracle-xml-db

我的意图是“选择容器编号等于输入数据的数据”(搜索功能的种类)。当我尝试检索数据时,我遇到了一个问题,问题出现在哪里:

d:goodsShipments/d:consignment/d:transportEquipment/d:id/text()

这里我收到了多个数据。我不知道如何在where条件下迭代它。

我的查询是:

我的源XML是:

如何选择sealId为5678的所有声明? 在这种情况下如何处理where条件?

2 个答案:

答案 0 :(得分:3)

每个货物有多个容器,并且在从原始XML中提取后,您将基于LRN进行过滤;所以你需要使用嵌套的XMLTable对象。第一个从声明中获取数据并将货物提取为子XMLType。然后将其传递给第二个XMLTable,它提取容器信息。

SELECT x1.lrn, x1.username, x2.containerNumber
FROM dmsimport_decl d
CROSS JOIN XMLTable(
  XMLNAMESPACES(DEFAULT 'http://www.xxxx.invalid/xxxx/xxx/schema/xxx',
    'http://www.xxxx.invalid/xxx/schema/common' AS "c",
    'http://www.xxxx.invalid/xxxx/xxx/schema/xxx' AS "d"),
  '/d:declaration'
  PASSING d.object_value
  COLUMNS
    lrn VARCHAR2(35 CHAR)
      PATH 'c:declarationHeader/c:localReferenceNumber/text()',
    username CHAR(25)
      PATH 'c:declarationHeader/c:username/text()',
    consignment XMLType
      PATH 'd:goodsShipments/d:consignment'
) x1
CROSS JOIN XMLTable(
  XMLNAMESPACES(DEFAULT 'http://www.xxxx.invalid/xxxx/xxx/schema/xxx',
    'http://www.xxxx.invalid/xxx/schema/common' AS "c",
    'http://www.xxxx.invalid/xxxx/xxx/schema/xxx' AS "d"),
  '//d:transportEquipment'
  PASSING x1.consignment
  COLUMNS
    containerNumber VARCHAR2(35 CHAR)
      PATH 'd:id/text()'
) x2
WHERE x1.lrn = 'NLDMS111111150010950';

使用您的(更新的)示例XML,生成:

LRN                                 USERNAME                  CONTAINERNUMBER                   
----------------------------------- ------------------------- -----------------------------------
NLDMS111111150010950                testSC testSC             abcd                               
NLDMS111111150010950                testSC testSC             bcde                               
NLDMS111111150010950                testSC testSC             cdef                               
NLDMS111111150010950                testSC testSC             defg                               
NLDMS111111150010950                testSC testSC             efgh                               

希望这就是你想要看到的。

Quick SQL Fiddle demo

您也可以使用更复杂的XPath将其保存在单个XMLTable中,但我认为这更清楚。

答案 1 :(得分:0)

您可以使用以下查询来迭代并从容器组件中获取ID ..

SELECT x1.lrn, x1.username, x2.containerNumber
FROM dmsimport_decl d
CROSS JOIN XMLTable(
  XMLNAMESPACES(DEFAULT 'http://www.SSSSSSS/dmsimport',
    'http://www.SSSSSSScommon' AS "c",
    'http://www.SSSSSSSS/dmsimport' AS "d"),
  '/d:declaration'
  PASSING d.object_value
  COLUMNS
    lrn VARCHAR2(35 CHAR)
      PATH 'c:declarationHeader/c:localReferenceNumber/text()',
    username CHAR(25)
      PATH 'c:declarationHeader/c:username/text()',
    containerComponent XMLType
      PATH 'd:goodsShipments/d:goodsItems'
) x1.
CROSS JOIN XMLTable(
  XMLNAMESPACES(DEFAULT 'http://www.SSSSSSSSS/dmsimport',
    'http://www.SSSSSS/common' AS "c",
    'http://www.SSSSSSSS/dmsimport' AS "d"),
  '//d:containerComponent'
  PASSING x1.containerComponent
  COLUMNS
    containerNumber VARCHAR2(35 CHAR)
      PATH 'd:id/text()'
) x2
WHERE x1.lrn = 'NL123456789160000464';