15 lines
585 B
Markdown
15 lines
585 B
Markdown
---
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tags:
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- databases
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---
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# Views in relational databases
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A view is a virtual table that is based on the result-set of a query. Although
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it doesn't actually exist in the same manner as an actual table it has exactly
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the same properties and functionality. Rather than adding the raw data manually,
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you derive it from logic applied to existing actual tables.
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This is a good way of dynamically generating data and is often employed as a way
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of creating mutations without changing the underlying data structure. In SQL,
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views can be created by combining `PRIMARY` and `FOREIGN` keys.
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