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SQL, or Structured Query Language, is a standardized programming language used for managing and manipulating relational databases. It allows users to perform various operations on data stored in databases, such as:
Querying: Retrieving specific data from a database (e.g., using the SELECT statement).
Inserting: Adding new records to a table (e.g., using the INSERT INTO statement).
Updating: Modifying existing data within a table (e.g., using the UPDATE statement).
Deleting: Removing records from a table (e.g., using the DELETE statement).
Creating and Modifying Structures: Creating new tables, modifying existing ones, and defining relationships between them (e.g., using CREATE TABLE, ALTER TABLE).
SQL is essential for database management systems (DBMS) like MySQL, PostgreSQL, SQL Server, and SQLite. It provides a way to interact with the data and structure within these systems, making it a crucial skill for anyone working with databases.
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