ORA-19026: EXTRACTVALUE can only retrieve value of leaf node
文档解释ORA-19026:EXTRACTVALUEcanonlyretrievevalueofleafnodeCause:GivenXPathdoesnotpointtoaleafnode.Action:Rewritethequerysothataleafnodeisreturned.ORA-19026:EXTRAC...
ORA-19025: EXTRACTVALUE returns value of only one node
文档解释ORA-19025:EXTRACTVALUEreturnsvalueofonlyonenodeCause:GivenXPathpointstomorethanonenode.Action:Rewritethequerysothatexactlyonenodeisreturned.ORA-19025:EXTRAC...
