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The query ran. Was the answer right? Stories, checks and small examples for working with data.
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PostgreSQL4 min read
Before you paste that PostgreSQL connection string
The quickest route to a database should not leave its password in your shell history.
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SQLite4 min read
An empty SQLite file does not mean your data is gone
One typo in a filename can send you into a brand-new database. Start by opening the existing file read-only.
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Schemas4 min read
The join ran. Why did the total triple?
A diagram is useful when it tells you how many rows a join can produce. Follow one order through the tables.
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