我正在研究使用 Rails 将调查存储到数据库的最佳方法。我已经检查了这个很棒的Smerf Survey Plugin for Rails,它使用下表将调查存储到关系数据库中:
smerf_forms: name, code
smerf_forms_users: user_id, smerf_form_id, responses (as text)
smerf_responses: smerf_forms_user_id, question_code, response (as text)
查看 Smerf 附带的基本调查示例的日志,有一些数据库调用:
Processing SmerfFormsController#create (for 127.0.0.1 at 2010-01-24 20:09:58) [POST]
Parameters: {"responses"=>{"g1q3a4s1"=>"", "g1q1a3s1a3s1"=>"", "g1q1"=>"1", "g2q1"=>{"1"=>"1"}, "g1q2"=>"2", "g1q3"=>{"1"=>"1", "2"=>"2", "3"=>"3"}, "g2q3"=>"12", "g1q4"=>["4"], "g1q5"=>["1", "3"], "g2q1a4s1"=>""}, "commit"=>"Press to Save your answers", "authenticity_token"=>"a4aDgvjzX0UK9HrQFdpdPyfALWGL22rcjRZfxDY3Ww0=", "smerf_form_id"=>"1"}
SmerfForm Load (1.0ms) SELECT * FROM "smerf_forms" WHERE ("smerf_forms"."id" = 1)
SmerfFormsUser Create (0.5ms) INSERT INTO "smerf_forms_users" ("responses", "smerf_form_id", "user_id") VALUES('--- !map:HashWithIndifferentAccess
g1q3a4s1: ""
g1q1: "1"
g1q1a3s1a3s1: ""
g1q2: "2"
g2q1: !map:HashWithIndifferentAccess
"1": "1"
g1q3: !map:HashWithIndifferentAccess
"1": "1"
"2": "2"
"3": "3"
g1q4:
- "4"
g2q3: "12"
g1q5:
- "1"
- "3"
g2q1a4s1: ""
', 1, -1)
SmerfResponse Create (0.2ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('1', 1, 'g1q1')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('2', 1, 'g1q2')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('1', 1, 'g2q1')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('1', 1, 'g1q3')
SmerfResponse Create (0.3ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('2', 1, 'g1q3')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('3', 1, 'g1q3')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('4', 1, 'g1q4')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('12', 1, 'g2q3')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('1', 1, 'g1q5')
SmerfResponse Create (0.1ms) INSERT INTO "smerf_responses" ("response", "smerf_forms_user_id", "question_code") VALUES('3', 1, 'g1q5')
Rendering smerf_forms/edit
Rendered smerf_forms/_smerf_form (11.0ms)
Completed in 51ms (View: 17, DB: 3) | 200 OK [http://localhost/smerf_forms]
我的问题是,使用 CouchDB(面向文档的数据库)而不是关系数据库存储调查是否会更好,因为调查是比其他任何东西都多的文档?沿着这些思路是这些问题:
- 上面的输出没问题,是不是应该再优化一下?我的意思是,人们不会经常填写调查表,所以他们不需要像闪电一样快,所以我想知道 CouchDB 是否真的会更快
- 它已经用这个插件很好地构建了,所以我应该只使用它还是在 CouchDB 中使用它会带来真正的好处。我想对此调查数据进行大量分析(大量搜索、排序、加入......)。
谢谢您的帮助。
仍在努力思考何时何地使用 CouchDB :)