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How do you even save a “duration”, let alone query for records by that value? It’s actually easier than you think.
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A quick introduction to which database index types are right for the task at hand in Postgresql.
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Finally, you too can understand how to use GROUP BY in your SQL queries.
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A mental model to understand SQL’s JOIN.
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See WHERE and SELECT visualized in this SQL primer.
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With Ecto, 🎶 you can always get what you want. And if you try sometimes, well, you might find, you can select want you need 🎶.
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Re-use collection query logic within model instances to avoid duplication and get the best performance.
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I’ve wrapped up my second Scala client project, and I enjoyed SQL.
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The right tool for the right job, right? Well let me introduce you to psql.
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Use interval and date_trunc to make working with SQL dates easier.