DBSIZE
Syntax
        DBSIZE
- Available since:
- 1.0.0
- Time complexity:
- O(1)
- ACL categories:
- 
              
                @keyspace,@read,@fast,
Return the number of keys in the currently-selected database.
DBSIZE
@keyspace,
              
                @read,
              
                @fast,
              
            Return the number of keys in the currently-selected database.