我编写了以下 XML 查询来将 XML 文件解析到我的 Snowflake 数据库中：
SELECT XMLGET( prodCstmsHdr.value, 'prodCd' )
FROM (SELECT XMLDOC
FROM RAW.WE_BREXIT_TRADE_TERMS
WHERE WE_BREXIT_TRADE_TERMS_UID =
(SELECT MAX(WE_BREXIT_TRADE_TERMS_UID)
FROM RAW.WE_BREXIT_TRADE_TERMS
WHERE WE_BREXIT_TRADE_TERMS_UID = 1623
)
) btt
INNER JOIN LATERAL FLATTEN(btt.xmldoc:"$") body
INNER JOIN LATERAL FLATTEN(body.VALUE:"$") prodCstmsHdr
INNER JOIN LATERAL FLATTEN(prodCstmsHdr.VALUE:"$") prodClsfnDtl
INNER JOIN LATERAL FLATTEN(prodClsfnDtl.VALUE:"$") prodClsfnItm
INNER JOIN LATERAL FLATTEN(prodClsfnItm.VALUE:"$") prodClsfnHTSGrp
LEFT JOIN LATERAL FLATTEN(prodClsfnItm.VALUE:"$") prodMatlCntnt
WHERE 1=1
AND GET(prodCstmsHdr.value, '@') = 'prodCstmsHdr'
AND GET(prodClsfnDtl.value, '@') = 'prodClsfnDtl'
AND GET(prodClsfnItm.value, '@') = 'prodClsfnItm'
AND GET(prodClsfnHTSGrp.value, '@') = 'prodClsfnHTSGrp'
**AND GET(prodMatlCntnt.value, '@') = 'prodMatlCntnt'**
AND XMLGET( prodCstmsHdr.value, 'prodCd' ):"$"::STRING IN ( '169831A', '5700123')
使用以下 XML 文件：
<?xml version="1.0"?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
<S:Body>
<ns2:getProductClassificationUpdatesResponse xmlns:ns2="http://xmlns.int.XXXXX.com/customs/globalproductdetails/v1" xmlns:ns3="http://customs.XXXX.com/webservice/soapfault">
<prodCstmsHdr>
<brand>Brand 1</brand>
<company>company name</company>
<divNm>20</divNm>
<divisionDescription>FOOTWEAR</divisionDescription>
<gndrAgeDesc>ADULT UNISEX</gndrAgeDesc>
<gndrAgeNm>01</gndrAgeNm>
<prodCd>169831A</prodCd>
<prodClsfnDtl>
<cmpndTypeNm>IND</cmpndTypeNm>
<imprtCtryCd>EU</imprtCtryCd>
<prodClsfnItm>
<lastUpdatedDate>2020-05-13T12:15:32.102-07:00</lastUpdatedDate>
<primFlag>Y</primFlag>
<prodClsfnHTSGrp>
<fromPrc>0</fromPrc>
<fromSz>0C</fromSz>
<hts>64039111111</hts>
<prcDirection>UP</prcDirection>
<szDirection>ABOVE</szDirection>
</prodClsfnHTSGrp>
<valPctg>100</valPctg>
<valTypeNm>BY PERCENTAGE</valTypeNm>
</prodClsfnItm>
<prodTypeNm>Inline</prodTypeNm>
</prodClsfnDtl>
<prodPoDtl>
<originCountries>US</originCountries>
<uom>PR</uom>
</prodPoDtl>
<seasonNm>Season 2020</seasonNm>
<silDesc>Sil description</silDesc>
<silNm>020</silNm>
<sportActyDesc>Football</sportActyDesc>
<sportActyNm>04</sportActyNm>
</prodCstmsHdr>
<prodCstmsHdr>
<brand>Brand 1</brand>
<company>Company name</company>
<divNm>20</divNm>
<divisionDescription>FOOTWEAR</divisionDescription>
<gndrAgeDesc>WOMENS</gndrAgeDesc>
<gndrAgeNm>22</gndrAgeNm>
<prodCd>5700123</prodCd>
<prodClsfnDtl>
<cmpndTypeNm>INDIVIDUAL</cmpndTypeNm>
<imprtCtryCd>EU</imprtCtryCd>
<prodClsfnItm>
<itmTypeNm>SHOE</itmTypeNm>
<lastUpdatedDate>2020-05-07T12:03:38.933-07:00</lastUpdatedDate>
<primFlag>Y</primFlag>
<prodClsfnHTSGrp>
<fromPrc>0</fromPrc>
<fromSz>0C</fromSz>
<hts>64041111000</hts>
<htsDesc>OTHER</htsDesc>
<prcDirection>UP</prcDirection>
<szDirection>ABOVE</szDirection>
</prodClsfnHTSGrp>
<prodMatlCntnt>
<athleticFootwear>N</athleticFootwear>
<constrCharacteristicDesc>Lined</constrCharacteristicDesc>
<constrProcessDesc>V</constrProcessDesc>
<coversAnkle>Y</coversAnkle>
<factoryCode>9K</factoryCode>
<fastenerTypeDesc>Lacing</fastenerTypeDesc>
<heelStrapFlag>N</heelStrapFlag>
<liningPrimary>
<fiber1>Cotton</fiber1>
<fiber1Percent>100</fiber1Percent>
<material>Textile</material>
</liningPrimary>
<liningSecondary>
<fiber1>Synthetic Leather</fiber1>
<material>Synthetic</material>
</liningSecondary>
<measurementSummary>
<coatedLeatherPct>0.0</coatedLeatherPct>
<leatherPct>0.0</leatherPct>
<otherPct>0.0</otherPct>
<summMethodCd>A</summMethodCd>
<syntheticPct>0.0</syntheticPct>
<textilePct>100.0</textilePct>
</measurementSummary>
<midsole>
<primaryMaterial>EVA</primaryMaterial>
</midsole>
<onePieceFtw>N</onePieceFtw>
<onePieceSole>N</onePieceSole>
<openHeelFlag>N</openHeelFlag>
<openToeFlag>N</openToeFlag>
<outsole>
<primaryMaterial>Rubber</primaryMaterial>
<primaryMaterialPercent>100</primaryMaterialPercent>
</outsole>
<plugsBottom>N</plugsBottom>
<plugsSide>N</plugsSide>
<primTechFeatureDesc>Low Density Polymer</primTechFeatureDesc>
<sockliner>
<primaryMaterial>Textile</primaryMaterial>
</sockliner>
<uprLthrNm/>
<uprMajority>Textile</uprMajority>
<uprOther/>
<uprSynthetic/>
<uprTextile>
<primaryMaterial>Polyester</primaryMaterial>
<primaryMaterialPercent>100</primaryMaterialPercent>
</uprTextile>
</prodMatlCntnt>
<valPctg>100</valPctg>
<valTypeNm>BY PERCENTAGE</valTypeNm>
</prodClsfnItm>
<prodTypeNm>Inline</prodTypeNm>
</prodClsfnDtl>
<prodPoDtl>
<originCountries>VN</originCountries>
<uom>PR</uom>
</prodPoDtl>
<seasonNm>Season 2020</seasonNm>
<silDesc>Sil description</silDesc>
<silNm>020</silNm>
<sportActyDesc>CASUAL/LEISURE</sportActyDesc>
<sportActyNm>29</sportActyNm>
</prodCstmsHdr>
</ns2:getProductClassificationUpdatesResponse>
</S:Body>
</S:Envelope>
由于产品 169831A 缺少节点“prodMatlCntnt”，因此数据不会显示。删除条件“AND GET(prodMatlCntnt.value, '@') = 'prodMatlCntnt'”将导致重复。这通常不是问题，但如您所见，我的文件中有更多节点，并且查询需要永远运行。
