libpq++ library

I am a psql beginner and am using the libpq++ library to write a series of
programs that access a database.

My database is working well, my problem is with:
PgCursor::Declare

PgCursor CourseData(data, "Student_course_record_portal");

I create this cursor and am able to successfully do:
CourseData.Declare(course_query.c_str())
CourseData.Fetch()
CourseData.GetValue(i, course_fnum)

It is when I want to repeat this process that I have problems.

I want to Declare a different string for the same PgCursor.
and then fetch from this new string's value (a select stmt)

If I just do one or the other things work correctly, but the repeating of
Declare and Fetch cause:
NOTICE: (transaction aborted): queries ignored until END
which then leads to the Fetch not working.....

I have also tried to just create a different PgCursor -
but this leads to an error
about not being in the default state.

Does anyone know of a fix - or am I making a stupid mistake?

Thank you for your time,
Summer

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