database table design best practices

://hi.baidu.com/cly84920/item/b29a8d4ec0fdc7f0dc0f6cd1, there is no use of responsive layout, and I think for this project do not use responsive layout advantage is greater than harm. As the author said, html5 is not used, and responsive design is not required. You need to "view the situation ". No matter how you use it, it is always necessary to understand this method. If you have more weapons, you have more options. After reading this, I felt like

Use C language to call mysql database programming practices and skills, mysql Database Programming Today, I have compiled and used C language to call mysql database programming practices and skills for reference by other IT peers. If there are any errors, I can leave a mess

frequently accessed. Because the table is very large and all retrieval operations are slow, you need to partition the table based on frequently accessed columns so that we can split the large table into multiple small tables, each small table is composed of several columns in a large

integer division and modulus manipulation, think about if you design a hash table or do a lot of math. 12. Some simple performance figures to illustrate some of our ideas, we have listed approximate uptime for some of the basic behaviors . Note that these values should not be treated as absolute numbers: they are a combination of CPU and clock time, and improvements to the system will change. It is worth n

model to the data model. EF not only supports generating database DDL from the domain model, but also supports generating the "Domain Model" from the database structure ". I think the latter can be removed, because what we get from the database is no longer a domain model. You will ask why, I can tell you, there is no way to describe the concept of a domain wit

The original idea is to teach you how to use AgileEAS step by step. NET base library for application development-articles related to the series of directories to gradually explain Based on AgileEAS. NET platform for application development, but in the case of the process, we have to talk about AgileEAS. in terms of Architecture Design for application development on the NET platform, I will separate some articles related to the architecture. I am based

SQL that was executing on the Mysqlldump script, which resulted in the subsequent SQL being in wait to flush table causing a lot of waiting to append a problem ~ In addition to the Flush Table Hermit command at the time of backup, there is nothing to do with implicit flushtable, then there is a good idea to know fluh table implementation principle, this I checke

Label:There are many database optimization can be said, according to the amount of data supported can be divided into two stages: single-machine database and sub-Library sub-table, the former can generally support 500W or 10G of data, more than this value will need to consider the sub-database sub-

simple numbers, avoid decimal points such as 2.5.Usually used behind a URL? V/blog/api/v19. Handling errors using HTTP status codesIf your API is not error-handling is difficult, just return 500 and the error stack is not necessarily usefulHTTP status Code provides 70 errors, we only need to use 10 or so:200–ok– everything's fine.201–ok– a new resource has been created successfully204–ok– resources have been successful at304–not modified– client uses cached data400–bad request– request is inval

the context information can be used in log. MDC uses a map-like mechanism internally to store information. The context information is also stored independently by each thread. what is different is that the information is stored in "map" based on their key values. Corresponding method, MDC. Put (Key, value); MDC. Remove (key); MDC. Get (key ); When configuring patternlayout, use: % x {key} to output the corresponding value ). With MDC, We can first obtain user information in the filter, and then

Unit testing best Practices for domain-driven design (ii)All along, I tried to find an effective unit test pattern, so that "unit testing" really can be popular in the team, so that unit testing is no longer a formality, but to make unit testing a way to improve the quality of the code.This article describes a scenario for implementing unit tests for domain-driven projects implemented in EF Code first mode.

attaches great importance to the guidance of programming styles. It is extremely important to establish a good aesthetic. Kent Beck: "I'm not a great programmer; I'm just a good programmer with great habits. "Deng Hui, translator of Agile Software Development: Principles, models, and practices, has his opinion:" code quality is the most direct and fundamental embodiment of software quality, the so-called design