Tag：comprehensive database
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mysql enable remote access privileges
1. Login to MySQL mysql -u root -p Enter your password 2. Select mysql database use mysql; Because the mysql database stores the user table with user information. 3. View information about the current root user in the user table of the mysql database. select host, user, authentication_string, plugin from user; After executing the above […]
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MySQL Installation Tutorial
I. MySQL Download (Installation Version) 1. Go to the official MySQL website Official website address:https://www.mysql.com/ 2. Click [DOWNLOADS]. 3. Scroll down and click [MySQL Community (GPL) Downloads] to download MySQL Community Edition. 4. Click [MySQL Installer for Windows] to download the MySQL installer. 5. You will then come to the MySQL latest version download page.（”MySQL […]
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Simple to implement a library management system with a database
catalogs I. Summary 2、Basic Functions 2. Foreword 3. Subject 3.1 Needs analysis 3.1.1 Data needs analysis 3.1.2 Functional requirements analysis 3.2 Outline design 3.2.1 Data dictionary 3.2.2 ERD (Entity Relationship Diagram) 3.2.3 DFD data flow diagrams 3.3 Logic Design 3.3.1 Conversion rules for E-R models to relational models 3.3.2 Conversion of the E-R diagram to […]
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Flink CDC in Detail
catalogs I. Introduction to CDC ?Flink CDC case practiceThree, Flink-CDC 2.0IV. Analysis of core principles I. Introduction to CDC ? What is CDC? CDC stands for Change Data Capture. The core idea is to monitor and capture database changes (including insertion, update, and deletion of data or data tables, etc.), record these changes in the […]
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How to understand Context in Go?
Best tutorial I’ve seen so far besides “go language programming”: https://www.practical-go-lessons.com Original text:https://www.practical-go-lessons.com/chap-37-context What will you learn in this chapter? 1. What is context? 2. What is a chained table? 3. How do I use the Context Pack? Technical concepts covered Context derivation Linked list Context key-value pair Cancellation Timeout Deadline present (sb for a […]
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Elasticsearch Data Search Principles
Elasticsearch is an open source, Lucene-based distributed search and analytics engine designed for use in cloud computing environments that enables real-time, scalable search, analysis, and exploration of full-text and structured data. It is highly scalable and can search and analyze large amounts of data in a short period of time. More than just a full-text […]
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DML statements in SQL
preamble Previously we have explained DDL statements in SQL statements. Today we will continue with the DML statement of SQL. DML is the Data Manipulation Language.Used to add, delete, and change data operations on the tables in the library.。 1. Add data to the specified field(INSERT) 2. Modify data(UPDATE) 3. Delete data(DELETE) catalogs preamble I. […]
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Oracle file automatically “weight loss” record
Article Catalog preamble 1. Archive log deletion Overview of archiving scheduled deletion 2. Listening to logs Listening Overview scheduled deletion 3. Alarm log Alarm log description overview scheduled deletion 4. Backup Delete Full Script Backup Delete preamble Daily operation and maintenance we will encounter a variety of Oracle files are too large, resulting in disk […]
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MySQL Database Download and Installation Tutorial (Latest Version)
MySQL Database Download and Installation Tutorial (Latest Version) I. Download mysql databaseII. Installing MysqlThird, verify whether the installation is successful(A), the command prompt cmd window verification(ii) MySQL Console Verification I. Download mysql database Go to the official MySQL website (https://www.mysql.com/downloads/), click on the download page in the order shown below. Note: There are two MSI […]
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General method to uninstall SQL Server on Windows system completely
General method to uninstall SQL Server on Windows system completely Installation and uninstallation of SQL Server is always a headache for us. Because no matter it is SQL Server or MySQL database, when we have problems with the database due to unknown reasons and want to uninstall and reinstall it, we will have a problem.If […]