Martin Gruber Understanding Sql.pdf Direct

\[UPDATE customers SET email='john.doe2@example.com' WHERE name='John Doe';\]

Understanding SQL: A Comprehensive Guide by Martin Gruber** Martin Gruber Understanding Sql.pdf

SQL is a declarative language, meaning that it specifies what data is needed, rather than how to retrieve it. It is used to perform various operations on data, such as creating, modifying, and querying databases. SQL is a standard language, and its syntax and features are supported by most RDBMS, including MySQL, PostgreSQL, Microsoft SQL Server, and Oracle. \[UPDATE customers SET email='john