Downloaded 139 times
![“[The NoSQL movement] departs from the relational
model altogether, it should therefore have been called
more appropriately ‘NoREL’, or something to that
effect.”
- Carlo Strozzi](https://image.slidesharecdn.com/rotterdamrb-100713021910-phpapp02/85/Advanced-CouchDB-Rotterdam-rb-July-2010-19-320.jpg)
![JSON
{
total_rows: 2,
offset: 0,
rows: [
{
id: '_design/foobar',
key: '_design/foobar',
value: { rev: '5-982b2fc36835715b2aae54609b5d5f1e' }
},
{
id: 'f0e1fd96eb6e094f74dda8d949000a6a',
key: 'f0e1fd96eb6e094f74dda8d949000a6a',
value: { rev: '1-86bca407fce8234a63c90ff549b56b10' }
},
]
}](https://image.slidesharecdn.com/rotterdamrb-100713021910-phpapp02/85/Advanced-CouchDB-Rotterdam-rb-July-2010-38-320.jpg)
![CONFIG
[external]
fti=/path/to/python /path/to/couchdb-lucene/tools/couchdb-external-hook.py
[httpd_db_handlers]
_fti = {couch_httpd_external, handle_external_req, <<"fti">>}](https://image.slidesharecdn.com/rotterdamrb-100713021910-phpapp02/85/Advanced-CouchDB-Rotterdam-rb-July-2010-66-320.jpg)
Uploaded bySander van de Graaf
Advanced CouchDB Rotterdam.rb July 2010
The document provides an overview of CouchDB, detailing its characteristics as a NoSQL database, such as its append-only storage, RESTful API, and eventual consistency. It discusses the querying capabilities, including map/reduce functions and full-text search functionality through CouchDB-Lucene. Additionally, it touches on CouchApps, the ability to build scalable web applications using CouchDB's features.
Advanced CouchDB Rotterdam.rb July 2010
- 1. CouchDB relax
- 2. CouchDB relax Sander van de Graaf svdgraaf
- 3.
- 4. PERFORM LIKE APR0N STAR
- 5. TOPICS • NoSQL • CouchDB in a nutshell • Querying • map/reduce • Fulltext search • CouchApps
- 6.
- 7.
- 8.
- 17.
- 18. NOSQL == NotOnly SQL
- 19. “[The NoSQL movement]departs from the relational model altogether, it should therefore have been called more appropriately ‘NoREL’, or something to that effect.” - Carlo Strozzi
- 20. CouchDB relax
- 26.
- 27.
- 28.
- 29.
- 30.
- 31.
- 32.
- 33.
- 34.
- 35.
- 36. REST • GET • SELECT • PUT • UPDATE • POST • INSERT • DELETE • DELETE • COPY • ...
- 38. JSON { total_rows: 2, offset: 0, rows: [ { id: '_design/foobar', key: '_design/foobar', value: { rev: '5-982b2fc36835715b2aae54609b5d5f1e' } }, { id: 'f0e1fd96eb6e094f74dda8d949000a6a', key: 'f0e1fd96eb6e094f74dda8d949000a6a', value: { rev: '1-86bca407fce8234a63c90ff549b56b10' } }, ] }
- 39.
- 40. CouchDB relax
- 41. CouchDB relax CouchDB relax
- 42. CouchDB relax CouchDB relax CouchDB relax CouchDB relax
- 43. CouchDB relax CouchDB relax
- 44. CouchDB relax CouchDB relax CouchDB relax
- 45. US NL CouchDB relax CouchDB relax CouchDB relax
- 46. Laptop Desktop CouchDB relax CouchDB relax Phone CouchDB relax
- 47.
- 51.
- 52. SELECT * FROMdocuments WHERE id = 123 GET /documents/123
- 53. SELECT * FROMdocuments WHERE id = 123 GET /documents/123 PUT /documents/123 POST /documents/123 DELETE /documents/123 etc.
- 54.
- 56. INPUT IP Bytes 212.122.174.13 18271 212.122.174.13 191726 212.122.174.13 198 74.119.8.111 91272 74.119.8.111 8371 212.122.174.13 43
- 57. MAPPER => REDUCER IP Bytes 18271 191726 212.122.174.13 198 43 91272 74.119.8.111 8371
- 58. AFTER REDUCE IP Bytes 212.122.174.13 210238 74.119.8.111 99643
- 59. MAP/REDUCE SELECT COUNT(foo) FROM documents WHERE1 GROUP BY foo;
- 60.
- 61. MAP/REDUCE function(doc) { emit(doc.foo, doc); }
- 62.
- 63. MAP/REDUCE function(keys, values, rereduce){ return sum(values); }
- 64.
- 65.
- 66. CONFIG [external] fti=/path/to/python /path/to/couchdb-lucene/tools/couchdb-external-hook.py [httpd_db_handlers] _fti ={couch_httpd_external, handle_external_req, <<"fti">>}
- 67.
- 68. _DESIGN { _id: '_design/foobar', _rev: '8-03a6bc983c721b1cc0ae4b461326bc31', language: 'javascript', views: { foo: { map: 'function(doc) {n emit(doc.foo,1);n}', reduce: 'function(keys, values, rereduce) {return sum(values);}' } } }
- 69. _DESIGN { _id: '_design/foobar', _rev: '8-03a6bc983c721b1cc0ae4b461326bc31', language: 'javascript', views: { foo: { map: 'function(doc) {n emit(doc.foo,1);n}', reduce: 'function(keys, values, rereduce) {return sum(values);}' } }, fulltext: { by_subject: { index:"function(doc) { var ret=new Document(); ret.add (doc.subject); return ret }" }, } }
- 70. _DESIGN function(doc) { var ret=new Document(); ret.add(doc.subject); return ret }
- 71. _DESIGN function(doc) { var result = new Document(); result.add(doc.subject, {"field":"subject", "store":"yes"}); result.add(doc.content, {"field":"subject"}); result.add(new Date(), {"field":"indexed_at"}); return result; }
- 72.
- 73.
- 74.
- 75. “Distributed, scalable, web applications you say? omgwtfbbq!?!1!!!11!1!eleven”
- 76.
- 77. CouchDB relax CouchDB relax CouchDB relax
- 78.
- 79. LISTS http://127.0.0.1:5984> GET /relax/_design/relax/_list/posts/all/foobar HTTP/1.1200 OK Vary: Accept Transfer-Encoding: chunked Server: CouchDB/0.11.0 (Erlang OTP/R13B) Etag: "DZZ19EPLWLHI89K1FOW9DGFT5" Date: Sun, 11 Jul 2010 09:55:42 GMT Content-Type: text/html <h1>ponies</h1><p>rock!</p>
- 80. CouchDB relax
- 81. CouchDB relax
- 82.
- 83.