Category: General SQL SQL Server

If you are querying the XML datatype you can query nodes using the sql below:


cast(DOC as xml).query('//trade_id/text()') as trade_id, 
cast(DOC as xml).query('//cdr/text()') as cdr, 
cast(DOC as xml).query('//type_instrument/text()') as 'type_instrument', 
cast(DOC as xml).query('(//product/@type)[0') as '@type'

from Deals

You may receive this error if you try to query an attribute:

Attribute may not appear outside of an element

Use the data() function to query attributes and resolve this problem

cast(DOC as xml).query('data(//product/@type)') as '@type'



SQL server

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