Can the sql_always_having parameter be written in pure SQL using database table and column names?

The sql_always_having parameter cannot be written in pure SQL using database table and column names because it is designed specifically for Looker's LookML syntax. This parameter is utilized to create additional conditions on aggregated results by adding conditions that must be met after the grouping has occurred in a SQL query.

While SQL itself uses tables and columns, the sql_always_having parameter is intended to be part of LookML's structure, which translates LookML into SQL queries tailored for the underlying database schema. Thus, using plain SQL syntax for this parameter does not align with how LookML operates as it hinges on LookML's abstraction layer for defining dimensions, measures, and relationships rather than the direct use of SQL's schema.

Therefore, the correct perspective is that the sql_always_having parameter is not expressed in pure SQL but rather as part of LookML, which provides a more contextual and structured approach to developing data models in Looker.