1381. Design a stack that supports incremental operations https://leetcode-cn.com/problems/design-a-stack-with-increment-operation/ 1381. Design a stack that supports incremental operations Question description Method 1: Use an array or linked list to simulate a stack array Complexity analysis linked list Complexity analysis code Method 2: Exchange space for time Illustration Complexity analysis code Title description Please design a stack […]
Tag: increment
Bsdiff, differential incremental upgrade of Bspatch (based on Win and Linux)
Table of Contents background content Preparation on windows platform on linux platform Formal work Ideas for generating differential files Functional differential file idea Perform differential incremental upgrade while maintaining the same directory structure Server (generate differential file) Client (function differential file) Updated on December 6th (bug fixed) Perform analysis Notes and areas of concern: background […]
The key to efficient data access: Analyze the operating mechanism of MySQL primary key auto-increment!
Article directory The concept of primary key self-growth Data type for primary key auto-increment The step size of the primary key’s self-increase Performance optimization of primary key auto-increment Why is the performance optimization of primary key auto-increment needed? Performance optimization solution for primary key auto-increment 1. Adjust the step size of the primary key’s self-increase […]
4 OpenCV implements multi-view 3D reconstruction (incrementally generates sparse point clouds from multiple pictures) [source code attached]
This article is based on OpenCV4.80. The configuration of the environment may be discussed separately later. Let me mention vcpkg first. It is really easy to use. 1 General process Sparse point clouds are gradually generated from multiple images. This process usually includes the following steps: Initial rebuild: The selection of the initial two pictures […]
Physical backup (full backup, incremental backup, differential backup)
Full backup: refers to backing up the data and structure of the entire database and generating a full backup file. In subsequent backups, the full backup can be used as a baseline backup for incremental or differential backups. Incremental backup: refers to backing up changes that have occurred since the last backup, so that only […]
The practice of auto-incrementing primary keys in MySQL migration to Oracle scenarios
This article verifies and summarizes two methods of implementing auto-incrementing primary keys in OB Oracle. Author: Zhao Liming, a member of the MySQL DBA team of Aikesheng. He is familiar with databases such as Oracle and MySQL. He is good at diagnosing database performance problems and analyzing transaction and lock problems. He is responsible for […]
MyBatisPlus (14) Primary key strategy (snowflake algorithm + UUID + primary key auto-increment + user input)
Description MyBatis Plus integrates a variety of primary key strategies to help users quickly generate primary keys. Snowflake algorithm ID (default strategy) (recommended) UUID Auto-increment ID The user enters the ID (the user must manually pass in the ID every time he inserts data) Snowflake algorithm ID: IdType.ASSIGN_ID (recommended) By default, the snowflake algorithm ID […]
Warehouse data incremental update loading algorithm (supports chaotic date batch running)
1. Database construction and test data insertion script –Create incremental update target table –Create table create table EDW_T100_BAL_IU (ID VARCHAR2(8) not null, BAL NUMBER(22,2), UPDATE_DT VARCHAR2(8) ); –Add comments to the table comment on table EDW_T100_BAL_IU is ‘Balance (incremental update mode loading) table’; — Add comments to the columns comment on column EDW_T100_BAL_IU.ID is ‘primary […]
[C++] Operator overloading ⑦ (Unary operator overloading | Postfix operator overloading | Use global functions to implement postfix ++ auto-increment operator overloading | Use member functions to implement postfix — auto-decrement operator overloading)
Article directory 1. Post operator overloading 1. Use global functions to implement postfix + + auto-increment operator overloading 2. Use member functions to implement postfix — decrement operator overloading 2. Complete code example In the previous blog [C++] operator overloading ⑥ (unary operator overloading | post-operator overloading | the difference between pre-operator overloading and post-operator […]
mysql full backup and incremental backup script
vim MYSQL_FULLBAK.sh //Full backup, once a week #!/bin/bash #set -x ################################################ ########## if [ $# -ne 2 ]; then echo “Usage: Enter the parameters in sequence: <ROOTPASSWD> <BAKDIR> “; exit 1 fi if ! ps -ef | grep -v “grep”|grep -q “mysqld “;then echo “mysql process not detected” exit 1 fi ################################################ ########## # Enter […]