Database

General steps of database design

After a few days to Shaoguan a university database design training , The process of database design has a more profound understanding . The design...
2020-08-17 03:26 views 42

IntelliJ IDEA 2020.2 EAP 5 release ： Perfect support Java 15

IntelliJ IDEA 2020.2 EAP5 Now released , The main highlights of the new version are as follows ：Java 15 support Related problemsIntentions previe...
2020-08-03 02:14 views 43

Redis High concurrency problem , And Solutions !

（ One ）redis Use of Technology ：redis It's really a great technology , It can solve the concurrency of the website in a moment to a certain extent ...
2020-08-02 05:47 views 595

MySQL Window function and its analytical query

MySQL From version 8.0 start , Support window function . Window functions allow you to use the new , A simpler way to solve the query problem , And...
2020-07-30 07:39 views 35

MySQL like Post query % Index failure analysis

MySQL like Post query % Index failure analysis table structure CREATE TABLE `t_food_shop` ( `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMME...
2020-07-28 15:18 views 23

ObjectMapper Detailed introduction , It's really that simple

brief introduction ObjectMapper class (com.fasterxml.jackson.databind.ObjectMapper) yes Jackson Main classes of , It can help us quickly carry out...
2020-07-24 11:58 views 57

Oracle database --- Primary key ID Generating non repeating string functions sys_guid()

Oracle database — Primary key ID Generating non repeating string functions sys_guid() Prepare the pressure test server today , Ready to build 10W D...
2020-07-22 19:21 views 26

docker install redis5.0

1. install redis5.0docker Mirror image takes the official redis5.0 image dockerpullredis:5.0.3 Create native redis Mount directory mkdir-p/root/red...
2020-07-22 10:10 views 41

MySQL affair (Transaction) Detailed explanation

A transaction defines that a transaction is a set of atomicity SQL query , Or a separate unit of work . If the database engine can successfully ap...
2020-07-09 11:25 views 32

MySQL affair

1,INNODB Transaction principle transaction （Transaction） It is one of the important characteristics that distinguish database from file system , A ...
2020-06-23 09:53 views 101
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