Query Languages
Query languages are specialized computer languages used to retrieve, manipulate, and manage data from databases or data sources. They provide a standardized syntax for expressing data queries, enabling users to interact with structured or semi-structured data efficiently. Common examples include SQL for relational databases, SPARQL for RDF data, and XQuery for XML documents.
Developers should learn query languages to effectively work with data storage and retrieval systems, which are fundamental to most applications. They are essential for tasks like data analysis, reporting, and backend development, particularly when using relational databases (e.g., with SQL) or NoSQL systems (e.g., with MongoDB's query language). Mastery improves data handling efficiency and supports roles in data engineering, web development, and business intelligence.