XPATH
(1)/Extract layer by layer
(2)text() Extract the text below the label
(3)/ /Tag name extract all tags
(4)//Tag name[num>=1] Extract sibling nodes with the same tag nam
Tag: extract
hadoop – Apache Hive regexp_extract UDF
I encountered a piece of code in Apache Hive, such as regexp_extract(input,'[0-9] *’,0), can someone explain to me what this code does? Thank you Starting from the Hive manual DDL, it returns the