caching - memcached vs a db based key value table? -

caching - memcached vs a db based key value table? -

which faster? 2 column select traditional db or query memcached?

if db query fast, why bother adding layer stack (assuming don't care expiring entries)?

wouldn't easier add together 2 column table (key varchar, value text) can used caching purposes?

when decide cache results of complex queries, should consider throughput latency. if set in database, simpler solution, although unlikely able handle many requests per sec if instead cached info in memcached (or other nosql database).

caching memcached key-value-store