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The most popular blog posts about software engineering on Hacker News. 14,535 posts.

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3663

I program on the subway

Ever since moving to New York City, I've found my time to be in more demand than ever. Between work, meetups, and social events, I have noticeably less time for side projects than I had before moving here. At the same time, my commute is a massive time suck. It's 30 minutes each way, which doesn't sound that bad, but…

3667

Why SELECT * is bad for SQL performance (2020)

Here’s a list of reasons why SELECT * is bad for SQL performance, assuming that your application doesn’t actually need all the columns. When I write production code, I explicitly specify the columns of interest in the select-list (projection), not only for performance reasons, but also for application reliability…