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SpringBoot - Dao integrates MybatisPlus In this section, learn how to integrate MybatisPlus with SpringBoot. 1. Introduction to mybatisplus MyBatis plus (MP for short) is an enhancement tool for MyBatis. On the basis of MyBatis, it only makes enhancements and does not change. It is born to simplify development and improve efficiency. Myba ...

brief introduction Redis provides two persistence methods: RDB (Redis DataBase) and AOF (Append Only File). RDB, in short, is to generate snapshots of data stored in redis at different time points and store them on disks and other media;AOF implements persistence from a different perspective, that is, record all the write instructions execute ...

1, Index overview 1. Introduction An index is a structure that sorts the values of one or more columns in a database table. Using an index can quickly access specific information in a database table. For example, index: if a certain page in the database is regarded as a book, the index is like a book directory. You can quickly find the locat ...

1, Master slave replication Quick start practice Based on Redis, a Master-Slave architecture is designed, including one Master and two slaves. The Master is responsible for reading and writing Redis and synchronizing data to the Slave. The Slave is only responsible for reading. The steps are as follows: First, duplicate redis01, for example: ...

Redis is a cache solution that we use a lot in our daily work. Using cache can improve the performance of blind date source code and greatly reduce the pressure on the database. However, improper use will also cause many problems. Next, let's take a look at the cache penetration problem in blind date source code development. Cache penetration ...

1. Test environment Add, delete, modify and query Python version 2.7.5 and DM8 database in Window. The following are the notes on stepping on the pit. SoftwareeditionDM databaseDM 8.0 and abovePythonPython 2.7.5Window10 professionalWindow10 professional Note: in case of error reporting during implementation, you must see whether there is a so ...

mysql installation Uninstall the original mysql #Check whether there is a built-in mariadb rpm -qa | grep -i mariadb #If yes, uninstall the built-in mariadb rpm -e --nodeps mariadb-libs Modify / tmp directory permissions chmod -R 777 /tmp Check for dependencies #The current package should exist [there are many virtual machines under no ...

title: Redis6 Introduction (I) NoSQL database NoSQL database summary NoSQL(NoSQL = Not Only SQL), which means "not just SQL", generally refers to non relational databases. NoSQL does not rely on business logic storage, but is stored in a simple key value mode. Therefore, it greatly increases the expansion ability of the databa ...

zabbix user and group permissions summary All users in zabbix access the zabbix application through the Web front end. Each user is assigned a unique login name and password. All user passwords are encrypted and stored in the zabbix database.Users cannot use their user name and password to log in directly to the UNIX server unless they are a ...

Use the SELECT statement for basic queries in the studentsdb database. (1) In the student_info table, query each student's school number, name, birth date information. SELECT School Number,Full name,Date of birth FROM `student_info`; (2) Query the names and home addresses of students whose student_info form number is 0002. SELECT Full name ...