Preface:
As we all know, is the need to learn the method. As a java programmer, we need to learn many skills, but our brains do not buy it, learning a knowledge, a long time will be forgotten,
How to better and efficient recall of knowledge once learned, is extremely important.
Some java programmers have good habits - taking notes, then this approach may make notes in text documents are dense, until the time needed to go in, his face is bitter, insipid!
Bloggers use in the learning process mind map summary of knowledge, convenient and practical, clear, for everyone to share, I hope that programmers in the way of learning, detours!
This is a chart I have summarized the link address: https://www.edrawsoft.cn/viewer/public/s/91c57278002710
background:
NoSQL, refers to non-relational database. With the rise of the Internet web2.0 websites, traditional relational database processing web2.0 sites, particularly large scale and high concurrent SNS
Web2.0 types of pure dynamic site has appeared to be inadequate, there have been many problems difficult to overcome, rather than relational databases due to its own characteristics has been very rapid development.
NoSQL database is generated in order to solve large-scale data collection of multiple data types of challenges brought about, especially in big data application problems.
