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  What are the MySQL permission control statements?

  What are the MySQL permission control statements? In order to give you a better understanding of MySQL access control statements, the editor summarizes the following, let's look down together. MySQ permission control statement 1. Log in to the MySQL server using the root account: mysql-u r

  2022-06-01 21:45:31 Views: 231
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  Oracle 11g RAC enables archiving, flashbacks and sets different paths

  Procedure: (start archiving) operate on any node: [oracle@rac02 ~] $srvctl stop database-d mecbs [oracle@rac02 ~] $sqlplus / as sy

  2022-06-01 21:45:30 Views: 236
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  Detailed explanation of the Paradigm of Mysql setting

  What is the definition of paradigm? Paradigm: Normal Format, a kind of knowledge in discrete mathematics, is to solve the problem of data storage and optimization: after data storage, all data that can be found through relationships will not be stored repeatedly, and the ultimate goal is to reduce the number of data.

  2022-06-01 21:45:06 Views: 213
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  How should a novice view the redis version

  How should a novice view the redis version? In order to let you know more about the way to view the redis version, the editor summarizes the following, let's read on. There are two ways to check the version of redis: 1. Redis-server-- version

  2022-06-01 21:45:03 Views: 248
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  Redis password Management-how to initialize the password for redis

  How to initialize the password for redis? In order to make everyone more redis password management, Xiaobian summed up the following content, let's look down. one。 How to initialize the password for redis? A total of 2 steps: a. There is a parameter in the configuration file: requirepa

  2022-06-01 21:45:00 Views: 258
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  Getting started with MySQL (1)

  The first part: the basis of MySQL basic concept Mariadb: design paradigm: the first paradigm: the field is the second normal form of atomicity: non-primary attributes are completely dependent on the storage of primary attributes.

  2022-06-01 21:44:50 Views: 253
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  Mysql multi-table query equivalent join, alias for the table

  # case: query the name of the goddess and the corresponding male name SELECT NAME,boyNameFROM boys,beautyWHERE beauty.boyfriend_id=boys.id;USE m

  2022-06-01 21:44:50 Views: 289
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  Redis installation

  Download Redis# wget http://download.redis.io/releases/redis-4.0.1.tar.gz# tar xzf redis-4.0.1.tar.gz# cd

  2022-06-01 21:44:44 Views: 223
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  MySQL- builds master-slave based on semi-synchronous replication

  1. Background * MySQL Replication is asynchronous by default. When the main library executes some transactions, it will not control the progress of the library. If the standby library unfortunately lags behind, and even more unfortunately, the main library appears Crash at this time (for example, down

  2022-06-01 21:44:44 Views: 274
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  A question of nodejs

  NodeJs connects to the mongodb database and generates the corresponding URL according to the server, so write a method: var createURL = function () {var mongourl = ""; if (

  2022-06-01 21:44:44 Views: 220
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  Share the experience of performance optimization of MongoDB aggregate

  What I want to share with you today is the performance optimization experience of MongoDB aggregate. Let's take a look. On an Ali CVM configured with 2 cores and 4G, the hard disk is an ordinary cloud disk (SATA disk), which runs several jav except mongoDB.

  2022-06-01 21:44:40 Views: 205
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  How to recover data after Mysql Database delete deletion

  Mysql database delete deleted after how to restore data, in order to let you know more about the SQL database, the editor summarized the following, let's look down together. Database environment deployment and failure reasons: the restored database is installed on the customer's local server and the server operating system

  2022-06-01 21:44:22 Views: 236
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  About the DM database performance test report

  Today, the editor shares a report on the performance test of DM database. Maybe you are no stranger to DM database, or you have never known DM database. But don't worry, today the editor will explain the principle of clustering algorithm with the simplest description. one。 Environment description 1.1 Test machine environment: description

  2022-06-01 21:44:10 Views: 273
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  Installation and simple use of PostgreSQL

  First, PostgreSQL introduction 1, what is the PostgreSQLPostgreSQL database is the most powerful open source database, supporting rich data types (such as JSON and JSONB types, array types) and custom types. And it provides plenty.

  2022-06-01 21:44:09 Views: 255
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  Understand the determinant storage in a few pictures

  Recently saw a very good material, in which a few words with a few pictures to explain the determinant storage (Column-based Storage), cow! What I like most is that it is easy to understand the background knowledge, rather than talking about concepts at length. 1 Why?

  2022-06-01 21:44:08 Views: 202
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  MySQL- understands the execution plan explain in MySQL

  What the editor shares today is to understand the implementation plan explain in MySQL. Maybe you are no stranger to MySQL, or you have never known MySQL. But don't worry, today the editor will explain the original of MySQL's execution plan explain with the simplest description.

  2022-06-01 21:43:56 Views: 240
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  What are the types of redis lists?

  What are the types of redis lists? In order to give you a better understanding of the types of redis lists, the editor summarizes the following. Let's read on. The Redis list is a simple list of strings sorted in the order in which they are inserted. You can add an element to the head (left) or tail of the list

  2022-06-01 21:43:53 Views: 272
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  Introduction to the method and principle of Redis persistent Snapshot

  What the editor shares today is an introduction to the methods and principles of Redis persistent snapshots. Maybe you are no stranger to Redis, or you have never known Redis. But don't worry, today the editor will explain the principle of Redis with the simplest description. The so-called persistence is keeping

  2022-06-01 21:43:30 Views: 222
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  3-node master-slave synchronous replication scheme of MySQL

  In the previous article, "Why do master-slave synchronous replication to MySQL" we explained the role of MySQL master-slave synchronization, the principle of master-slave synchronization and the shortcomings of master-slave synchronization. Let's introduce the next three nodes: two nodes are master and slave to each other, and one node is used to implement MySQ as the slave of the first two nodes.

  2022-06-01 21:43:22 Views: 201
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  Maven's aggregation module and pom inheritance use

  1. What is the aggregation module of maven? The aggregation module is the top level of the project directory, and other modules exist as aggregation module subdirectories. The goal is to build multiple project modules at a time. 1.1 Project structure I changed a relationship about the project myself: 1.2 pom tag configuration-mod

  2022-06-01 21:43:13 Views: 207