From 7fb8f0af039690a5510eec42675c7e819e3d33e0 Mon Sep 17 00:00:00 2001 From: Ryan Date: Wed, 14 Jun 2023 17:02:26 +0800 Subject: [PATCH] Auto saved by Logseq --- pages/总复习2023t1.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md index b6f670c..9e2eed3 100644 --- a/pages/总复习2023t1.md +++ b/pages/总复习2023t1.md @@ -1179,16 +1179,16 @@ - the motivation for NoSQL #flashcard - By giving up ACID constraints, one can achieve much higher performance and scalability. - - explain the concepts of NoSQL + - explain the concepts of NoSQL #flashcard - NoSQL databases (aka "not only SQL") are non-tabular databases and store data differently than relational tables. NoSQL databases come in a variety of types based on their data model. The main types are document, key-value, wide-column, and graph. They provide flexible schemas and scale easily with large amounts of data and high user loads. - - explain the application areas of NoSQL + - explain the application areas of NoSQL #flashcard - NoSQL is an alternative, non-traditional DB technology to be used in large scale environments where (ACID) transactions are not a priority. - - CAP theorem: + - CAP theorem: #flashcard - There are 3 main properties for distributed management: 1. Consistency → A data item has the same value at the same time (to ensure coherency).