SQLite has the useful ability to provide an in-memory database that can be
shared by multiple connections in the same process by opening the DB with the
following syntax:
rc = sqlite3_open("file:memdb1?mode=memory&cache=shared", &db);
I'm testing a database having this configuration in a unit test framework I
have, and I'm finding that when I re-run the unit test, the data in the
in-memory DB seems to still be around from the previous unit test run. This
sort of makes sense; the underlying idea here is something else in the same
process can (re)-open the database via the same URI.
My questions are:
(a) Is this right? A shared-cache, in-memory database is "persistent"
across connections from the same process that do not overlap in time?
(b) Is there some way to reliably blow away one of these databases so I
know there will be no hangover state after that operation and can start fresh
with a virgin database?
Thanks in advance for any information or ideas.
Randall.
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