MongoDB in windows system installation configuration details and basic operation

1. Types of databases type Relational: oracle, mysql, sqlite, sqlServer, etcNot Only SQL: MongoDB (document), Redis, Memcache (memory) Differences between relational and non relational database software Similarities: Are database software, used to store project data difference: Relationship typUTF-8...

Posted by xentia on Wed, 19 May 2021 04:14:16 +0930

Linux compile and install the latest semi Redis

Redis Redis is an open source (BSD licensed), in-memory data structure storeļ¼Œused as a database. Non relational key value pair databaseOfficial website: www.redis.io Redis features Speed: 10W QPS, based on memory, C languageSingle threaded (earlier versions before Redis 6)PersistenceSupport muUTF-8...

Posted by dcgamers on Fri, 02 Jul 2021 05:49:16 +0930

Talk Redis Series--Summary of Actual Warfare Cases

Taking on the previous articles, this evening we'll talk about some interesting technical implementation cases inside Redis.We left a tail at the end of the last article and continue to share with you today how redis work in these scenarios. Weibo, Weixin, Momo WeChat < Shake > UTF-8...

Posted by gabe33 on Tue, 06 Jul 2021 02:05:58 +0930

Come and look at the convenient and fast index

1, Index overview 1. Concept of index An index is a sorted list in which the index value and the physical address of the row containing the data containing the value are stored (similar to the linked list of C language, which points to the memory address of the data record through a pointer).AUTF-8...

Posted by maverick3d on Wed, 08 Dec 2021 19:33:24 +1030

Read the source code of Sorted Set. Why can ordered sets support point queries and range queries at the same time

Sorted Set source code reading Why can ordered sets support point queries and range queries at the same time? Ordered set is an important data type in Redis. It itself is a set type. At the same time, it can also support the elements in the set to be weighted and sorted by weight. A student engUTF-8...

Posted by Gmunky on Sat, 11 Dec 2021 19:12:31 +1030

Sorted Set source code reading

Sorted Set source code reading Why can ordered sets support point queries and range queries at the same time? Ordered set is an important data type in Redis. It itself is a set type. At the same time, it can also support the elements in the set to be weighted and sorted by weight. A student engUTF-8...

Posted by zackcez on Sat, 11 Dec 2021 19:44:46 +1030

Explain implementation plan of MongoDb learning

There is a huge gap between mongodb 3.0 and the explain implementation plan of previous versions. Here we only learn to introduce the usage after 3.0You can view the execution plans of the following operationsBasic usagedb.collection.find().explain(verbose)verbose is the output mode of explain UTF-8...

Posted by no_one on Tue, 14 Dec 2021 01:37:15 +1030

Basic operation of mongoDB

1. What is MongoDB mongoDB MongoDB is a database based on distributed file storage. Written in C + +. Under high load, adding more nodes can ensure server performance. MongoDB aims to provide scalable high-performance data storage solutions for Web applications. MongoDB is a product between reUTF-8...

Posted by gauss on Sun, 19 Dec 2021 08:09:13 +1030

Dahua Redis series -- in depth discussion on Multiplexing

Today, let's discuss the specific implementation principle of multiplexing in redis. Introduction to connection and access of Redis client and server In the previous article, we mentioned that the Redis client and server communicate through the resp protocol. In fact, the essence of this communUTF-8...

Posted by daena76 on Tue, 21 Dec 2021 14:11:03 +1030

REDIS learning notes 2

1. Why use Nosql What is the bottleneck of the whole website? If the amount of data is too large, one machine can't fitThe data index (B+Tree) can't fit into a single machine memoryThe number of accesses (mixed reading and writing) can't be borne by one server As long as one of the above three UTF-8...

Posted by vlcinsky on Tue, 21 Dec 2021 19:39:32 +1030