Dump ResultSet as XML?

Question

Hi,
I'm writing a generic module that should take any sql-query as input, and return the result as a string/XML.
The code could be something like this:
std::string get_xml(std::string sql) {
Statement *stmt;
try {
stmt = conn->createStatement();
ResultSet *rs = stmt->executeQuery(sql);
Is there a simple way of dumping this whole resultset (or each row of it) as an xml string?
Otherwise, I could start doing something like this:
std::vector<MetaData> md = rs->getColumnListMetaData();
for (int i = 0; i < md.size(); i++)
std::string cname = md.getString(MetaData::ATTR_NAME);
int datatype =md[i].getInt(MetaData::ATTR_DATA_TYPE);
switch (datatype) {
// Read the correct type from rs and build XML string...
But I don't want to end up with a ugly naive switch statement with a lot of different types...
Any suggestions?
Regards,
Sverre

Answer 1

I'd think that as long as the database version is 9.2 or later (all of the current supported versions) you could use an XML SQL function or XDB to generate the result as XML (SYS_DBURIGEN perhaps).
Alternatively you could use the XDK APIs (like XSQL) to do this part.