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In earlier versions of MyBatis, developers could invoke database operations directly through the DefaultSqlSession's selectOne() method using the StatementID defined in Mapper XML files. This approach, while functional, presented significant maintainability challenges. The StatementID was specified as a hardcoded string constant, making refacto ...

Returning List Results When querying multiple records, MyBatis can automatically map results to a Java List. The mapper XML uses the same select element, but the Java method declares List as the return type. Mapper Interface: public interface StudentDao { List<Student> selectAllStudents(); } Mapper XML: <select id="selectAllS ...