FLUSHDB
Removes keys from the selected database.
Keys & expiration · Example verified
Syntax covered here
FLUSHDBDBSIZE confirms the tested database is empty afterward; no optional execution mode is exercised.
Tested example & replies
Requests below run in order against an empty database. Each connection authenticates with the fixture password first. Quoted values are strings; null is a nil reply; arrays preserve RESP order.
# connection: default
> SET sample value
"OK"
# connection: default
> FLUSHDB
"OK"
# connection: default
> DBSIZE
0