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SQL is a domain-specific language used in programming and designed for managing data held in a relational database management system (RDBMS), or for stream processing in a relational data stream management system (RDSMS). It is particularly useful for handling structured data, i.e. data incorporating relations among entities and variables. SQL offers both a data definition language (DDL) and a data manipulation language (DML). The scope of SQL includes data insert, query, update and delete, schema creation and modification, and data access control.
During my experience building React Native apps, I’ve learned that good offline storage makes the difference between apps users love and apps they delete. Let me share what actually works in the real…
It is no secret that the AI revolution has started. Most every modern business application has an agent, a copilot or assistant asking to help write a document or take meeting notes. Nearly every banking or telecom customer service site greets us with a chatbot. Microsoft Teams meetings are concluded with Copilot summarizing the discussion…
In today's article, we will provide important insights on dead rows, vacuum operations, FSM, and VM in PostgreSQL. When performing UPDATE or DELETE operations on a table in PostgreSQL, the modified or deleted data is still retained. For example, when you execute an UPDATE operation on a table, the existing data is hidden, and a