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BS ISO/IEC 9075-4:1996 is a standard within the Information Technology domain, specifically focused on database languages and SQL (Structured Query Language). The full title of the standard is "Information technology - Database languages - SQL - Part 4: Persistent stored modules (SQL/PSM)."
SQL is a standardized language used for managing and manipulating relational databases. This standard, ISO/IEC 9075-4:1996, addresses the aspect of Persistent Stored Modules (PSM) within the SQL framework. Persistent Stored Modules are procedures or functions that are stored in a database and can be invoked or executed as part of SQL statements.