Input
| xid | xmldocument |
|---|---|
| 1 | <bookstore> : <owner>Billy</owner><items> : <bookitem category="ASTRONOMY"> : <title lang="en">Cosmos</title> : <author>Carl Sagan</author> : <author>Ann Druyan</author> : <year edition="1">1980</year> : <price> : <member>49.99</member> : <public>60.00</public> : </price> : </bookitem> : </items> : </bookstore> |
| 2 | <cdstore> : <owner> Amy </owner> : <items> : <cditem category="pop"> : <title lang="en">Breathe</title> : <author>Yu Quan</author> : <year>2003</year> : <price> : <member>29</member> : <public>35</public> : </price> : <position value="1" locate="east"/> : </cditem> : </items> : </cdstore> |
SQL Call
The Ancestor syntax element specifies that any node whose value ends with 'store' is an ancestor. The Nodes syntax element specifies that the function is to output the owner of each store and the title, author, and year of each node that starts with a string of lowercase alphabetic characters and ends with 'item'.
SELECT * FROM XMLParser (
ON xml_inputs_fuzzy
USING
TextColumn ('xmlDocument')
Nodes ('like(%store)/owner','regex([a-z]+item)/{title,author,year}')
Ancestor ('like(%store)')
Accumulate ('xid')
) AS dt ;
Output
For bookstore and cdstore, the output table has the value of owner; for bookitem and cditem, the output table has the values of title, author, and year. Multiple values are separated by the default delimiter, comma (,).
xid out_nodeid out_parent_node owner title author year --- ---------- --------------- ----- ------- --------------------- ---- 1 1 bookstore Billy 1 2 bookitem Cosmos Carl Sagan,Ann Druyan 1980 2 1 cdstore Amy 2 2 cditem Breathe Yu Quan 2003
Download a zip file of all examples and a SQL script file that creates their input tables from the attachment in the left sidebar.