======Couch DB======


Couch DB patri mezi nerelacni (NoSQL) natabaze, tedy databaze dvojic - (klic, hodnota). Couch DB je databaze, ktera bezi jako sluzba, tedy typu Server - Klient.
Vychozi port pro Couch DB je 5984. CouchDB komunikuje pres HTTP/JSON, tedy HTTP je ramec, ve kterem je uzacrena zprava v [[http://json.org|JSON]] specifikaci.


====Externi odkazy====
[[http://couchdb.apache.org/|couchdb.apache.org]] - domovske stranky\\

====Start/stop/status====
/etc/init.d/couchdb start/stop ... start/stop databaze\\

====Konfigurace====
/etc/couchdb/default.ini

====JSON, Ovladani, atd====
http://localhost:5984/ - {"couchdb":"Welcome","version":"0.10.0"} ... uvodni JSON zprava\\
http://localhost:5984/_utils ... administracni interfejs\\
http://localhost:5984/atf ... informace o databazi atf\\
http://localhost:5984/atf/05123432fd1234123a41234123d - {"_id":"05123432fd1234123a41234123d","_rev":"4-bea1234123412","first_name":"Tomas","last-name":"Lipensky","prefered_dbs":["couchdb","berkleydb"]} ... vypise prvek o zadanem klici\\
curl -X PUT http://localhost:5984/atf/05123432fd1234123a41234123d -d '{"_rev":"4-bea1234123412","first_name":"Tom","last_name":"Mot"} ... zmena polozky, revize je povinna polozka, po updatu se zmeni cislo revize\\
curl -X POST http://localhost:5984/atf -d '{"first_name":"Petr","last_name":"Pan"}' ... vytvori novy zaznam\\
curl -X GET http://localhost:5984/atf ... ukaze opet informace o databazi atf\\