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.

cloud mining-Облачный майнинг

 Having figured out how mining works, you can try another method that is available to almost everyone and has a minimum entry threshold. The advantages of the technique are that there is no need to buy expensive equipment, set it up and endure a high noise level.


All you need for mining in the "cloud" is a regular PC, even without discrete graphics, and instructions:


Find the optimal coin and cloud service for mining.

Select the calculation algorithm and power.

Choose a rental period - on average, about 1 year.

Pay rent and commission.

Periodically check the receipt of charges for mining.

After the completion of the contract, decide whether to switch to another service and tariff or stay on these.

The disadvantage of cloud mining of cryptocurrencies is the inability to independently control the process and the possibility of encountering scammers. Therefore, a beginner and even an experienced miner should carefully select services. And in 2021, among the best options you can find such sites:


Shamining, for mining BTC;

ECOS, for Bitcoin mining;

BeMine - for mining Bitcoin, Zcash and Ethereum;

Genesis Mining, for mining a variety of cryptocurrencies, from Bitcoin and Dash to Zcash and Litecoin.

The duration of the average contract is 1 year. Almost all cloud services have such offers. But you can find rental options for 180 days (ECOS) and 2 years


(Genesis Mining), and for 8 months (BeMine). But it is worth considering - the longer the contract, the more the miner will have to invest.