you have documents with a field like lkh_state : "CA" now get all docs what include this field and key in sql you would do: SELECT * FROM customers WHERE lkh_state = 'WY' in couchdb you can call the view like this curl -X GET http://user:pass@127.0.0.1:5984/db/_design/customers/_view/lkh_state?key=\"WY\" than you can create a view condition like: if(doc.type == 'customers' && doc.lkh_state ) { emit(doc.lkh_state,doc.lkh_state); }

http://guide.couchdb.org/editions/1/en/cookbook.html#key

if you like to find by code than your view MYVIEWs emit should be like: emit(doc.code,doc) and the call can be: curl -X GET 'http://user:pass@mydomain:5984/MYDB/_design/MYDESING/_view/MYVIEW?key="BC"' 25.07.14

http://guide.couchdb.org/editions/1/en/views.html#example/3

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