Cloud technologies appeared back in the distant 50s of the twentieth century, when computers were very expensive and a solution was needed so that several people could simultaneously connect to a common processor. The first working solution was presented in 1964. Since then, the number of cloud services has grown Continue Reading
Data
Business moves to the cloud: how to do it right and not overpay?
In 2021, even the most conservative businesses are actively looking towards cloud solutions. Migration to the cloud is an opportunity to remove infrastructure maintenance issues from internal specialists, avoid problems with outdated servers and capital investments in hardware. But you also need to move to the cloud competently: assess what Continue Reading
The best cloud storages: an overview
Cloud storage is a dedicated space to you on numerous service provider servers; the file storage system is decentralized – your two files can be on entirely different servers! Upload the file using the application to the server, and it gets into the “cloud.” Depending on your wishes and needs, Continue Reading
Why do we need a database for the site?
As I noticed, not everyone understands and knows why the site needs a database, and in general whether he needs it? The question is interesting enough because not all sites need it, and some without it at all how can not cope. In this article I would like to analyze Continue Reading
Why you need to learn more about database
The database is at the center of the modern software. Most of the software being written today uses databases. Nothing in software is more universal, or more central to everything. Databases have three important characteristics. First, they are huge. Almost everything ever written is stored in a database. Databases hold Continue Reading
ACID transactions
Actions with data that have the properties of atomicity, consistency, isolation and Durability is the ACID definition of a transaction. D – Durability is the same model I was talking about: if the data has already been written to disk, then we believe that it is there, recorded securely and Continue Reading
Proficiency in code
There is an interesting story in German road traffic regulations. If the road narrows, then the rules prescribe to get to the end, and only then rebuild one by one, and the neighboring car must let through. All are rearranged strictly one after another – this sign speaks about it. Continue Reading
Storage layers
Let’s start with the storage layer. Understanding how it works helps to understand what is happening on the higher layers. The storage layer provides: ✓ Concurrency and efficiency. In other words, it is competitive access. That is, when we try to benefit from concurrency, the problem of concurrent access inevitably Continue Reading
Data storage and processing
Even if you have already had a blog on the Internet on text files for 30 years, as some database creators do, in fact, this text file is a database, just a very simple one. Everyone is trying to reinvent the database. One of the speakers at the conference said: Continue Reading
Requirements for the data access layers
It is still important for the storage layer to maintain the original parallelism so that all data is not beaten, overwritten, overwritten, etc. At the same time, they must be securely stored and reliably reproduced. That is, if we write something to the database, we must be sure that we Continue Reading