Question

I am getting the error below when I use this syntax. I want to be able to pass the argument to the nodes function:-

CROSS APPLY XML_TPYE_COLUMN.nodes(@p_Xpath) AS Tab(Col)

Error:

The argument 1 of the XML data type method "nodes" must be a string literal.

Can someone tell me how do i do this correctly?

Answer 1

You’ll have to do this via dynamic sql since the parameter for nodes must be a string literal. This is similar to what you do when you do sp_executesql.

In other words, you need to construct your entire sql statement as nvarchar(max) and pass it to sp_executesql:

DECLARE @statement nvarchar(max)= N'select  ... CROSS APPLY col.nodes('+@p_Xpath+') AS Tab(Col)'

execute sp_executesql N@statement