{"id":557,"date":"2017-10-23T23:12:53","date_gmt":"2017-10-23T21:12:53","guid":{"rendered":"http:\/\/dekarlab.de\/wp\/?p=557"},"modified":"2020-05-23T15:35:22","modified_gmt":"2020-05-23T13:35:22","slug":"book-designing-data-intensive-applications","status":"publish","type":"post","link":"https:\/\/dekarlab.de\/wp\/?p=557","title":{"rendered":"Book notes &#8211; Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems"},"content":{"rendered":"<p>You can buy this book from <a href=\"https:\/\/www.amazon.de\/Designing-Data-Intensive-Applications-Reliable-Maintainable\/dp\/1449373321\/ref=sr_1_1?ie=UTF8&#038;qid=1508792526&#038;sr=8-1&#038;keywords=designing+data-intensive+applications\">amazon.de<\/a>.<br \/>\n<!--more--><\/p>\n<p><b>Comparison Relational Model vs. Document Model<\/b><\/p>\n<p>Datalocality in document model &#8211; joins can be avoided. Tree structure is also possible.<\/p>\n<p>Relational model uses schema-on-write. First you need to define schema. Then you can fill the schema with data.<\/p>\n<p>Document Model uses schema-on-read. You ingest your data in data lake. Then you can flexible define the model during the reading of data.<\/p>\n<p>Post will be updated&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You can buy this book from amazon.de.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0},"categories":[27,25],"tags":[57,34,49],"_links":{"self":[{"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=\/wp\/v2\/posts\/557"}],"collection":[{"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=557"}],"version-history":[{"count":6,"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=\/wp\/v2\/posts\/557\/revisions"}],"predecessor-version":[{"id":569,"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=\/wp\/v2\/posts\/557\/revisions\/569"}],"wp:attachment":[{"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dekarlab.de\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}