OSB Xquery :Date calculation

See more:

XML

All,

I want to do a date subtract operation in Xquery, OSB 12C.Basically, have to check if an input date is < 6 months from the system date.

i.e- how to do in xquery : (SystemDate - inputDate) < 6 months

Have went through: https://docs.oracle.com/cd/E13214_01/wli/docs92/xref/xqdtopref.html but not able to compile any of the function listed there. Have also added the namespace in xquery. Do I need to add any library.

Any pointer is highly appreciated.