I'd argue somewhat that the approach works well for SQL. On a superficial level it allows you to hide the implementation details of your query execution. In pra

I'd argue somewhat that the approach works well for SQL. On a superficial level it allows you to hide the implementation details of your query execution. In practice not so much. Hence keywords like "explain" were invented and statements like "CREATE INDEX". And table partitioning. And hints. And myriad of other practices where the SQL abstraction "leaks" details from the layer below.