What are the rules for MyBatis mapping files?

The rule for MyBatis mapping files is:

1. The element.
2. The namespace property of the element specifies the fully qualified name of the Java interface corresponding to the mapping file.
3. Elements contain multiple sub-elements used to define SQL statements, parameter mapping, and result mapping.
4. Elements such as “`“` are used to define database query, insert, update, and delete operations.“`“` elements are used to define reusable SQL fragments that can be referenced in other SQL statements.“`“` elements are used to define the mapping relationship between result sets and Java objects.“`“` elements are used to define the mapping relationship between parameters and parameters in SQL statements (not recommended for use).“`“` elements are used to include SQL fragments defined in other mapping files. Mapping files can use dynamic SQL statements by dynamically generating SQL statements using elements such as “`“` and “`“`.

   In summary, the rules for MyBatis mapping files specify the namespace through elements, define SQL statements and parameter mappings, use defined result mappings, can include reusable SQL fragments, and support the use of dynamic SQL statements.

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