A note on select *. In some db's, you can do subselects with select * that increase maintainability.
You can get things like:
( select * from beverage where type = ? ) drink
now mind you, it may not be as efficient as explicitly doign every single column, but if the sub query produces negligible data-size difference (in bytes) then you can definitely get away w/ it and have virtually no performance difference.
Granted, this query can be rewritten so that it doesn't use a subquery, but subqueries are a feature that is needed sometimes. This is just merely an example showing only the features of a subselect and select * :)
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