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SQL (Structured Query Language) is a domain-specific language used in programming and designed for managing data held in a relational database management system. A . False. SQL does not have graphical capabilities; it is a textual language for database interaction. B . False. SQL supports variable definition, but it is not a core feature of the language. Variables are more commonly defined in procedural extensions to SQL, such as PL/SQL in Oracle. C . True. SQL provides database transaction control through statements like COMMIT, ROLLBACK, and SAVEPOINT. D . True. SQL is designed for processing sets of data, allowing for operations such as selection, projection, and joins on sets of rows. E . False. SQL does not provide capabilities to update data in external files. It operates on data within the database. Reference: Oracle Documentation on SQL Language: https://docs.oracle.com/database/121/SQLRF/toc.htm