Oracle

 Oracle Database is a database management system from Oracle. This DBMS is also actively used by large companies and costs a lot of money, but in return it provides great functionality and reliability. Therefore, Oracle Database and Microsoft SQL Server are serious competitors to each other. The results of Oracle in the rankings are not so clear, for example, according to PYPL and DB-Engines, Oracle Database ranks first, according to Stack Overflow Oracle is in eighth position, according to surveys of Oracle software companies in fourth place in popularity. If we take into account only a couple of ratings, Oracle can even be put in first place, but if we take into account all the results, then Oracle cannot be put in first place, therefore, in our rating, this DBMS occupies the third line.

What is a math problem

 What is a math problem


Math problems are puzzles that require computing power. In this case, tasks are divided into several types:

Decomposition of a single number into factors.
Search for input parameters with a known result, or a hash function.
Calculation of hash function values in a certain sequence if a DDoS attack is suspected.
Hashing is used to solve problems within the Proof-of-Work algorithm. But the development of the network leads to many difficulties, including an increase in the complexity of tasks.