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Each record stores details about a single item, such as one user.
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Rollback cancels changes if something goes wrong.
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ORMs translate code objects into database commands automatically.
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Frameworks like Express or Django help build APIs quickly.
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Node.js lets you run JavaScript outside the browser.
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UPDATE edits details in stored records.
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DELETE erases unwanted records safely.
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WHERE narrows down which rows a query affects.
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JOIN merges information from related tables in one view.