In a calculation view, why would you implement an SQL expression?

SQL expressions in a calculation view are used for dynamic data transformations and filtering. They can:

A. Generate a restricted column: Apply conditions to create columns with restricted values.

B. Define a filter: Apply SQL conditions to filter data dynamically.

C. Generate a calculated column: Derive new column values using calculations or expressions.

SQL expressions are not typically used for creating hierarchies (D) or currency conversion (E); these are handled by specific features or nodes in SAP HANA calculation views.