Tag：stock
-
(5) MySQL advanced SQL optimization (optimizing database objects)
1. General In the process of database design, users may often encounter this problem: should all tables be designed according to the third paradigm? How long should the fields in the table be changed to? Although these problems are small, if they are not properly designed, they may bring many performance problems to future applications. […]
-
How to do a good job in commodity management for Tanabata activity operation and social game applications
Yes, that’s right! Saturday is the annual Tanabata. I believe most people want to do something romantic in this traditional Chinese love festival. For hardworking operators, especially operators of social and game applications, Tanabata is an important node that can not be missed in the summer and even in the second half of the year. […]
-
Second kill project summary and common interview questions
preface: This article isSummary of muke.com second kill project, the speaker is Joshua. You can get resources by searching Java seckill on station B. in order to prevent the link from expiring, you can go to station B to search The idea of spike project is roughly the same, but some functions are more complete. […]
-
Saga of event consumers – event traceability
This article is reproduced from [how to decouple]:https://codedecoupled.com/php… What is saga SagaIs a design pattern for dealing with long business processes. The length here is not the length of time, but refers to the domain width of a business process due to cross domain. So a saga processing cycle may be a week, an hour, […]
-
Redisson + spring boot to realize distributed lock
Redisson + spring boot to realize distributed lock In some scenarios, it is necessary to ensure that the data is not repeated and the accuracy of the data. In particular, the accuracy of some data is particularly important. Therefore, at this time, it is necessary to ensure that only one thread of a method can […]
-
06 distributed lock
1. Understand the usage scenarios of distributed locks 1.1 business scenario 1 Quick and continuous clicking of app will send continuous requests to the server, resulting in duplicate data in the database (non blocking lock) Form duplicate submission Repeat order brushing App repeat request 1.2 business scenario 2 Inventory oversold problemSystem a is an e-commerce […]
-
Variance from SAP mm item No. to inventory transfer posting of item
Variance from SAP mm item No. to inventory transfer posting of item As we all know, the transaction event code AUM (special inventory expense / revenue) of obyc is used to record the material transfer posting, such as the difference between the prices of transferred out materials and received materials in the 301 / […]
-
Processing of difference between commodity invoice price and purchase order price of SAP mm moving average price
Processing of difference between commodity invoice price and purchase order price of SAP mm moving average price In SAP system, if the moving average price is adopted for a commodity, generally speaking, the price difference between the purchase order and the invoice will not be included in the price difference account. Of course, the […]
-
What problems can wholesale and distribution ERP system help enterprises solve?
Wholesale and distribution ERP software needs in-depth functions to manage the distribution process, simplify the supply chain, enhance the capacity of retail and e-commerce departments and deal with background operations. Powerful ERP is a necessary tool for wholesale and distribution business. It helps to manage the unique needs of enterprises engaged in wholesale markets. Through […]
-
Dimension modeling example
Take inventory module and retail module to talk about the related matters of dimension modelingSort out the structure and design idea of table in inventory businessSort out the processing methods and advantages and disadvantages of slow change dimensionThis blog is planned to be completed over the weekend. We can only briefly discuss the general situation […]
-
Analysis of second kill system design
Analysis of second kill system design I introduction Let’s assume a business scenario, a commodity spike activity, 100 pieces of inventory, and it is estimated that 10W people will participate in the activity II Problems faced by the system 1. High concurrency The business scenario of secsha is characterized by extremely short time and a […]
-
How to connect the ground and air to the micro front end?
Introduction: while the micro front end brings obvious benefits, it also faces pain points. For existing sites, how to access a micro front end based on the old technology stack? What general functions are needed? How to solve the plug-in mechanism? This paper shares a micro front-end access scheme and implementation details. 1、 Foreword The […]