$SOL

SQL (Structured Query Language) is a programming language designed for managing and manipulating data in relational database management systems (RDBMS). Here's a brief overview:

- *Purpose*: SQL is used to create, modify, and query databases.

- *Key operations*:

- *SELECT*: Retrieve data from a database.

- *INSERT*: Add new data to a database.

- *UPDATE*: Modify existing data in a database.

- *DELETE*: Delete data from a database.

- *CREATE*: Create a new database or table.

- *DROP*: Delete a database or table.

- *Data types*: SQL supports various data types, such as integers, strings, dates, and timestamps.

- *Querying data*: SQL allows you to filter, sort, and aggregate data using clauses like WHERE, ORDER BY, and GROUP BY.

Some common SQL concepts include:

- *Tables*: Collections of related data.

- *Columns*: Individual fields within a table.

- *Rows*: Individual records within a table.

- *Primary keys*: Unique identifiers for each row in a table.

- *Foreign keys*: References to primary keys in other tables.

SQL is a powerful tool for managing and analyzing data in relational databases. Do you have specific questions about SQL or database management?