I need to write a Stored procedure in SQL server whose data returned will be used to generate a XML file.
My XML file to be in structure of
<root> <ANode></ANode> <BNode></BNode> <CNode> <C1Node> <C11Node></C11Node> <C12Node></C12Node> </C1Node> <C2Node> <C21Node></C21Node> <C22Node></C22Node> </C2Node> <C3Node> <C31Node></C31Node> <C32Node></C32Node> </C3Node> </CNode> </root>
My question is, in the stored procedure we can select values for ANode and BNode as a simple SELECT statement like
Select ANodeVal,BNodeVal from Table
But how to design the stored procedure to get records for the CNode which is a subtree which has 3 or more(dynamic) separate nodes in it for each record in addition to the normal ANode and BNode.
See
Nesting XML-returning scalar valued functions
Once you get the hang of the nesting, and are willing to write the number of scalar-valued functions necessary to construct the node segments from the bottom up (I wouldn’t want lots of these laying around), then it’s not so hard.