Mapping SQL data values to XML data values

SQL data values are mapped to XML values based on SQL data types.

The following data types are not supported and cannot be used as arguments to XML value constructors:

• ROWID
• Character strings that are defined with the FOR BIT DATA attribute
• Binary strings
• A string or a binary string distinct type that is based on a ROWID, FOR BIT DATA character string, or BLOB

For supported data types, the encoding scheme for XML values is Unicode.