我需要对SP进行更改，该SP具有一堆复杂的XML函数，而不是
Declare ResultCsr2 Cursor For
WITH
MDI_BOM_COMP(PROD_ID,SITE_ID, xml ) AS (
SELECT TC401F.T41PID,TC401F.T41SID,
XMLSERIALIZE(
XMLAGG(
XMLELEMENT( NAME "MDI_BOM_COMP",
XMLFOREST(
trim(TC401F.T41CTY) AS COMPONENT_TYPE,
TC401F.T41LNO AS COMP_NUM,
trim(TC401F.T41CTO) AS CTRY_OF_ORIGIN,
trim(TC401F.T41DSC) AS DESCRIPTION,
TC401F.T41EFR AS EFFECTIVE_FROM,
TC401F.T41EFT AS EFFECTIVE_TO,
trim(TC401F.T41MID) AS MANUFACTURER_ID,
trim(TC401F.T41MOC) AS MANUFACTURER_ORG_CODE,
trim(TC401F.T41CNO) AS PROD_ID,
trim(TC401F.T41POC) AS PROD_ORG_CODE,
TC401F.T41QPR AS QTY_PER,
trim(TC401F.T41SBI) AS SUB_BOM_ID,
trim(TC401F.T41SBO) AS SUB_BOM_ORG_CODE, --ADB01
trim(TC401F.T41VID) AS SUPPLIER_ID,
trim(TC401F.T41SOC) AS SUPPLIER_ORG_CODE,
TC401F.T41UCT AS UNIT_COST
)
)
) AS CLOB(1M)
)
FROM TC401F TC401F
GROUP BY T41PID,T41SID
)
SELECT
RowNum, '<BOM_INBOUND>' ||
XMLSERIALIZE (
XMLELEMENT(NAME "INTEGRATION_MESSAGE_CONTROL",
XMLFOREST(
'FULL_UPDATE' as ACTION,
'POLARIS' as COMPANY_CODE,
TRIM(TC400F.T40OCD) as ORG_CODE,
'5' as PRIORITY,
'INBOUND_ENTITY_INTEGRATION' as MESSAGE_TYPE,
'POLARIS_INTEGRATION' as USERID,
'TA' as RECEIVER,
HEX(Generate_Unique()) as SOURCE_SYSTEM_TOKEN
),
XMLELEMENT(NAME "BUS_KEY",
XMLFOREST(
TRIM(TC400F.T40BID) as BOM_ID,
TRIM(TC400F.T40OCD) as ORG_CODE
)
)
) AS VARCHAR(1000)
)
|| '<MDI_BOM>' ||
XMLSERIALIZE (
XMLFOREST(
TRIM(TC400F.T40ATP) AS ASSEMBLY_TYPE,
TRIM(TC400F.T40BID) AS BOM_ID,
TRIM(TC400F.T40CCD) AS CURRENCY_CODE,
TC400F.T40DPC AS DIRECT_PROCESSING_COST,
TC400F.T40EFD AS EFFECTIVE_FROM,
TC400F.T40EFT AS EFFECTIVE_TO,
TRIM(TC400F.T40MID) AS MANUFACTURER_ID,
TRIM(TC400F.T40MOC) AS MANUFACTURER_ORG_CODE,
TRIM(TC400F.T40OCD) AS ORG_CODE,
TRIM(TC400F.T40PRF) AS PROD_FAMILY,
TRIM(TC400F.T40PID) AS PROD_ID,
TRIM(TC400F.T40POC) AS PROD_ORG_CODE,
TRIM(TC400F.T40ISA) AS IS_ACTIVE,
TRIM(TC400F.T40VID) AS SUPPLIER_ID,
TRIM(TC400F.T40SOC) AS SUPPLIER_ORG_CODE,
TRIM(TC400F.T40PSF) AS PROD_SUB_FAMILY,
CASE TRIM(TC400F.T40PML)
WHEN '' THEN TRIM(TC400F.T40PML)
ELSE TRIM(TC400F.T40PML) || '~' || TRIM(TC403F.T43MDD)
END AS PROD_MODEL
) AS VARCHAR(3000)
)
|| IFNULL(MBC.xml, '') ||
XMLSERIALIZE (
XMLFOREST(
XMLFOREST(
TRIM(TC400F.T40CCD) AS CURRENCY_CODE,
TC400F.T40PRI AS PRICE,
TRIM(TC400F.T40PTY) AS PRICE_TYPE
) AS MDI_BOM_PRICE,
XMLFOREST(
TRIM(TC400F.T40CCD) AS CURRENCY_CODE,
TRIM(TC400F.T40PRI) AS PRICE,
'TRANSACTION_VALUE' AS PRICE_TYPE
) AS MDI_BOM_PRICE,
XMLFOREST(
TRIM(TC400F.T40INA) AS INCLUDE_IN_AVERAGING
) AS MDI_BOM_IMPL_BOM_PROD_FAMILY_AUTOMOBILES
) AS VARCHAR(3000)
)
|| '</MDI_BOM>' ||
'</BOM_INBOUND>' XML
FROM (
SELECT
ROW_NUMBER() OVER (
ORDER BY T40STS
,T40SID
,T40BID
) AS RowNum
,t.*
FROM TC400F t
) TC400F
LEFT OUTER JOIN MDI_BOM_COMP MBC
ON TC400F.T40SID = MBC.SITE_ID
AND TC400F.T40PID = MBC.PROD_ID
LEFT OUTER JOIN TC403F TC403F
ON TC400F.T40PML <> ''
AND TC400F.T40PML = TC403F.T43MDL
WHERE TC400F.T40STS = '10'
AND TC400F.RowNUM BETWEEN
(P_STARTROW + (P_PAGENOS - 1) * P_NBROFRCDS)
AND (P_STARTROW + (P_PAGENOS - 1) * P_NBROFRCDS +
P_NBROFRCDS - 1);
上面给出的是SP代码中的游标声明，我很难理解。第一个WITH本身似乎很神秘。我已将它与临时表名一起使用，但这是第一次，我看到这类似乎是SP或UDF的东西？有人可以指导我如何理解并理解这一切吗？
进一步补充问题，这里的实际要求是将数据排列在XML中，使得填充了TC401F.T41SBI字段的那些记录应该出现在XML输出的开头。
在以下代码中选择此字段：
trim(TC401F.T41SBI) AS SUB_BOM_ID。如果此字段为非空白，则该字段应首先出现在XML中，并且具有此字段值Blank的所有记录应仅在此后出现。这样做的最佳方法是什么？以任何方式使用ORDER BY似乎并没有帮助，因为XML实际上是通过某些函数创建的，并且排序不影响项在XML中的排列方式。我能想到的一种方法是使用where子句，其中TC401F.T41SBI <> ''首先将那些记录追加到TC401F.T41SBI = ''
答案 0 :(得分：0)
我能做的最好的就是帮助CTE。
WHERE这只会生成一个名为MDI_BOM_COMP的表，其中包含三列名为PROD_ID，SITE_ID和XML的列。该表将为每个PROD_ID，SITE_ID创建一条记录，XML的内容将是一个XML代码段，其中包含该产品和站点的所有组件。
现在XML部分可能有点令人困惑，但如果我们将其分解为标量和聚合组件，我们可以使它更容易理解。
首先忽略分组。所以CTE检索 WITH
MDI_BOM_COMP(PROD_ID,SITE_ID, xml ) AS (
SELECT TC401F.T41PID,TC401F.T41SID,
中的每一行。 TC401F和XMLELEMENT是标量函数。 XMLFORREST创建单个XML元素标记是第一个参数，元素的内容是上例中的第二个参数。 XMLELEMENT就像一堆XMLFORREST连在一起。
XMLELEMENT因此，在示例中，对于表格中的每一行， XMLSERIALIZE(
XMLAGG(
XMLELEMENT( NAME "MDI_BOM_COMP",
XMLFOREST(
trim(TC401F.T41CTY) AS COMPONENT_TYPE,
TC401F.T41LNO AS COMP_NUM,
trim(TC401F.T41CTO) AS CTRY_OF_ORIGIN,
trim(TC401F.T41DSC) AS DESCRIPTION,
TC401F.T41EFR AS EFFECTIVE_FROM,
TC401F.T41EFT AS EFFECTIVE_TO,
trim(TC401F.T41MID) AS MANUFACTURER_ID,
trim(TC401F.T41MOC) AS MANUFACTURER_ORG_CODE,
trim(TC401F.T41CNO) AS PROD_ID,
trim(TC401F.T41POC) AS PROD_ORG_CODE,
TC401F.T41QPR AS QTY_PER,
trim(TC401F.T41SBI) AS SUB_BOM_ID,
trim(TC401F.T41SBO) AS SUB_BOM_ORG_CODE, --ADB01
trim(TC401F.T41VID) AS SUPPLIER_ID,
trim(TC401F.T41SOC) AS SUPPLIER_ORG_CODE,
TC401F.T41UCT AS UNIT_COST
)
)
) AS CLOB(1M)
都会创建一个XML元素列表，每个元素对应XMLFORREST，COMPONENT_TYPE，COMP_NUM等等。这些元素构成了由CTRY_OF_ORIGIN创建的另一个XML元素MDI_BOM_COMP的内容。
现在，对于表格中的每一行，我们选择了XMLELEMENT，PROD_ID，并创建了一些XML。接下来，我们按SITE_ID和PROD_ID进行分组。聚合函数SITE_ID将收集每个XMLAGG和PROD_ID的所有XML，并将它连接在一起。
最后SITE_ID会将内部XML表示转换为我们都知道和喜爱的字符串格式;）
答案 1 :(得分：0)
我想我找到了符合我要求的答案。我必须在XMLELEMENT函数
之后按字段名添加订单