To select messages with a specified sum of verbosity less than a specified limit N in SQL, a recursive approach or cumulative sum strategy can be used.
The process involves creating a Common Table Expression (CTE) to recursively build the result set while ensuring the total verbosity stays under the specified threshold.
The SQL solution described is compatible with databases like PostgreSQL and SQLite, leveraging features such as CTEs for clarity and modularity.
By adjusting the threshold value '70' in the query, the solution can be applied to different scenarios where the sum of a specific column needs to be limited.