Assertion: sequence | /r/HasProperty | surrogate key
Facets:
Source sentences:
text: always just assume a sequence is a surrogate key (unique) and nothing more
text: do not under any circumstance assume that sequences will return monotonically increasing values.do not assume that a record with sequence=1 is "older" than a record with sequence=200.what you show above easily and almost always happens in a clustered environment.it will not happen in a non-database-clustered environment, but don't count on that.always just assume a sequence is a surrogate key (unique) and nothing more