Programming VIP

preface The main content of this article is to use Python to write some practical scripts to facilitate our daily use (as long as we dare to think, we dare to create). In daily life, we write the front-end and back-end, and often use the database. MySQL is often used in Python to operate mysql. Usually, we need to write a lot of sql cod ...

The last one shared "understanding JVM in depth", and this one shared "Redis five data structures and three advanced data structure analysis". preface The most important and fundamental part of Redis is its rich data structure. The reason why Redis stands out is that it has rich data structure and can support a variety ...

Introduction to Docker What is Docker? To tell you the truth about what Docker is, let me show you what Docker is through four points. Docker is the world's leading software container platform, developed and implemented in the Go Language.Docker frees developers by automating repetitive tasks such as setting up and configuring development en ...

Operation of summary table Summarize according to Master Kang's video tutorial, which is convenient for individuals to review, query and use Create and manage tables #Create database CREATE DATABASE IF NOT EXISTS XXXXXX; # CREATE DATABASE XXXXXX CHARACTER SET 'UTF8'; #Use database USE XXXXXX; #modify the database ALTER DATABASE xxxxxx CHARA ...

1, Object name 1. Case sensitive CREATE TABLE TEST.Abc(COL INT); ------For creating a table, when case sensitive, the table name ABC is not enclosed in double quotation marks, and the system will automatically convert it to uppercase table name ABC The inquiry is as follows: SELECT * FROM TEST.Abc; ------Successful execution SELECT * F ...

1. Design background Recently, some users have put forward the need to implement a set of video learning module and online examination module in the original website. Here, I will first introduce the design idea of the following online examination module. To realize an online examination system with basic functions, the following elements are ...

1. Index index 1. Definition Indexing is a fast, ordered data structure that helps databases efficiently retrieve data. In addition to data, the database system maintains data structures (additional storage space) that satisfy specific lookup algorithms, which point to the data in some way so that efficient lookup algorithms can be implemente ...

Design mode summary significance The essence of design pattern is the practical application of object-oriented design principles. It is a full understanding of the encapsulation, inheritance and polymorphism of classes, as well as the association and composition of classes Basic elements name Question: the application environment of th ...

Proc programming experiment 1, Experimental content 1) Create three tables in the database: Student s, course C and s grade SC. 2) Write a program using pro*C to complete the operation of the database and output it according to the corresponding format. The format is as follows: 3) Use Pro*C to write the program, complete the operation of the ...

tlinux 3.1 installing PostgreSQL 13 x TencentOS Server is a customized server operating system independently developed by Tencent. The system integrates many services The advantages of the device series include the self-developed software, which is convenient for users to operate and use, and provides all-round (kernel and user state) Operatin ...