The parameters are all String.
query is any SQL query that returns a result set.
server identifies the Adaptive Server on which to execute the query. If you invoke the method in a client environment, specify the server name.
If you invoke the method in an Adaptive Server (in a SQL statement or isql), specify either an empty string or the string “jdbc:default:connection,” indicating that the query should be executed on the current Adaptive Server
cdata columns indicates which columns should be XML CDATA sections.
colNames indicates whether the resulting XML should specify “name” attributes in the “Column” elements
