sequences() returns all the existing sequences that a user has the right to access in a database
exists() for a Sequence that checks if a sequence exists by looking up all the existing sequences that a user has the right to access in a database, and checking if the identifier of the Sequence matches that of any of the existing sequences
Added two functions:
sequences()
returns all the existing sequences that a user has the right to access in a databaseexists()
for aSequence
that checks if a sequence exists by looking up all the existing sequences that a user has the right to access in a database, and checking if the identifier of theSequence
matches that of any of the existing sequences