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Continue to learn MySQL
2022-07-01 05:41:00 【What's the matter with spring and autumn moon? Autumn wind mour】
Three tier structure ：
1、 adjoining course ： The client establishes a connection with the server , The client sends sql To the server side
2、SQL layer ( Server layer )： Yes SQL Statement for query processing ; It has nothing to do with the storage mode of database files ;
3、 Storage engine layer ： Dealing with database files , Responsible for data storage and reading
1、SQL Execute the process
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