sql CREATE VIEW
时间: 2023-09-08 14:08:04 浏览: 56
CREATE VIEW is a SQL statement used to create a virtual table based on the result of a query. It allows users to save complex queries as views and then reference them as if they were actual tables.
The syntax for creating a view in SQL is as follows:
```
CREATE VIEW view_name AS
SELECT column1, column2, ...
FROM table_name
WHERE condition;
```
Here, `view_name` is the name you want to assign to the view, `column1`, `column2`, etc. are the columns you want to include in the view, `table_name` is the name of the table you want to query, and `condition` is an optional condition to filter the rows.
Once the view is created, you can query it like a regular table using the SELECT statement. The view will always reflect the latest data from the underlying table(s) used in its definition.
Remember that a view is just a virtual representation of data and does not physically store any data. It provides a way to organize and simplify complex queries for easier access and maintenance.
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