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13 lines
620 B
Markdown
13 lines
620 B
Markdown
---
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title: 'You can use recursive queries to query hierarchical trees'
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tweet_id: '1555543666231369728'
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thread_slug: weekly-thread-2022-31
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author_username: tobias_petry
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images:
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- 'https://pbs.twimg.com/media/FZOXjYuXwAA6ucp.jpg'
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created_at: 2022-08-05T13:18:05+00:00
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slug: you-can-use-recursive-queries-to-query-hierarchical-trees
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---
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⚡ Database Tip
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Recursive queries are a great solution to e.g. querying multiple levels in a tree with just one query. But you should use cycle detection otherwise your query might run forever or fail for loops in your data. https://sqlfordevs.com/cycle-detection-recursive-query
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