NoSQL vs SQL в реальных проектах
Краткий обзор
SQL (реляционные СУБД): данные хранятся в таблицах со строго заданной схемой (schema-on-write). Пример: PostgreSQL, MySQL, Oracle.
NoSQL (нереляционные СУБД): гибкие модели данных (документ, ключ–значение, граф, колоночные) и отсутствие жёсткой схемы (schema-on-read). Пример: MongoDB (документы), Redis (ключ–значение), Cassandra (колоночная), Neo4j (граф).
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BY Базы данных (Data Base)
In recent times, Telegram has gained a lot of popularity because of the controversy over WhatsApp’s new privacy policy. In January 2021, Telegram was the most downloaded app worldwide and crossed 500 million monthly active users. And with so many active users on the app, people might get messages in bulk from a group or a channel that can be a little irritating. So to get rid of the same, you can mute groups, chats, and channels on Telegram just like WhatsApp. You can mute notifications for one hour, eight hours, or two days, or you can disable notifications forever.
Tata Power whose core business is to generate, transmit and distribute electricity has made no money to investors in the last one decade. That is a big blunder considering it is one of the largest power generation companies in the country. One of the reasons is the company's huge debt levels which stood at ₹43,559 crore at the end of March 2021 compared to the company’s market capitalisation of ₹44,447 crore.
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