Tag：Database
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Time：2021-7-30
In addition to providing excellent automated testing for commonly used relational databases, springboot also provides automated configuration support for many NoSQL databases, including redis, mongodb, elasticsearch, Solr and Cassandra. 01 integrate redis Redis is a very fast non relational database. It can store the mapping between keys and five different types of values, and persist […]
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Time：2021-7-30
Since the emergence of large screen visualization, it has been deeply sought after by enterprises from all walks of life. The most typical is the large screen with double 11 sales of Taobao every year. Recently, I just came into contact with a large screen project to summarize some visual large screen production experience and […]
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Time：2021-7-30
Hello, I’m glacier~~ Recently, my friends have been asking me whether to write the database first or write the cache first when writing data to the database after the cache is introduced into the system? What is the difference between writing the database first and writing the cache first? Today, let’s talk about this topic. […]
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Time：2021-7-29
1、 Foreword stayPart IIt briefly introduces the identity of ASP. Net core, a framework responsible for user identity authentication. When we select this framework as needed to manage and store user account data in our application, it will be added to our own project. At this time, we will use the built-in data model by […]
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Time：2021-7-29
Introduction:Recently, the 2021 mongodb.live global user conference was successfully concluded. Li Feifei, vice president of Alibaba group and head of Alibaba cloud database, was invited to attend the mongodb analyst day event and was interviewed by mongodb coo / CFO Michael Gordon to jointly discuss the application and future development of mongodb technology. At this […]
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Time：2021-7-29
At the beginning, JPA and mybatis gernertor are two ways to automatically generate entity classes. Today, I will introduce the first way to use JPA Automatically generate entity classes Add JPA to project 1. Add JPA under the project, click file – > project structure – > modules, and click the plus sign in the […]
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Time：2021-7-29
In the first half of 2020, we have been waiting for a long timeReal time database serviceOfficially released. The real-time database realizes the real-time two-way communication between the client and the server based on websocket. When the cloud data changes, it immediately notifies all clients to synchronize the data, thus changing the one-way mode in […]
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Time：2021-7-29
After all, it’s time for me, a newcomer to the front end, to write the interface by myself, roll up my sleeves and directly write the code import pymssql import time from flask import Flask, request, jsonify from flask_cors import CORS #Database connection DB = pymssql.connect (host = ‘own database address’, User = ‘user name’, […]
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Time：2021-7-29
ALTER LOGIN sa ENABLE ;GOAlter login SA with password = ‘database password’ unlock, check_ policy = off,check_expiration = off ;GO
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Time：2021-7-29
1、 Definition of data modeling Data modeling refers to the abstract organization of all kinds of data in the real world, determining the jurisdiction of the database and the organization form of data, until it is transformed into a real database. After transforming the conceptual model abstracted after system analysis into physical model, the process […]
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Time：2021-7-29
Today, let’s talk about the development of Oracle database. This issue is a little sensitive, because after talking about today’s topic, some people will say that I worship foreign countries, which is not in line with the current trend of vigorously developing state-owned database products and going to “O”. Moreover, I am also from Oracle, […]
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Time：2021-7-28
CouchDBIs an open source, document oriented NoSQL database. In this article, you will learn how to install Apache CouchDB on CentOS 8. catalogue What is Apache CouchDB? Environmental specifications: Step 1: update CentOS 8 package Step 2: install EPEL Yum repository on CentOS 8 Step 3: install CouchDB Yum repository on CentOS 8 Step 4: […]
