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Detailed explanation of mysql view instance

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Release: 2018-03-15 10:45:42
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View: It is a select statement (usually more complex). We give it a name (view name). In the future, it is convenient to use (execute) the select statement: just use the view name. (Similar to the encapsulation and calling of functions)

Create a view

Grammar form:

create  view  视图名 【(字段名1,字段名2,字段名3,....)】   as   select语句;
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Example:

Detailed explanation of mysql view instance

Using views

Example:

Usually used as a table

Detailed explanation of mysql view instance

Delete view:

drop  view  【if  exists】 视图名;
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Detailed explanation of the role of MySQL views (1) -Simplify complex connections and format retrieved data

Detailed explanation of the role of MySQL views (2)-Filter data, calculate fields, and update views

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