package safeluck.drive.evaluation.DB; import androidx.lifecycle.LiveData; import androidx.room.Dao; import androidx.room.Delete; import androidx.room.Insert; import androidx.room.OnConflictStrategy; import androidx.room.Query; import java.util.List; /** * MyApplication2 * Created by lzw on 2019/11/25. 10:51:02 * 邮箱:632393724@qq.com * All Rights Saved! Chongqing AnYun Tech co. LTD */ @Dao public interface StudentDao { @Insert(onConflict = OnConflictStrategy.REPLACE) void insert(Student student); @Query("SELECT * from student_table") LiveData> getAllStudents(); @Delete void deleteStu(Student student); @Insert(onConflict = OnConflictStrategy.REPLACE) void insertAll(List students); @Query("update student_table set begin_time =:beginTime where stu_id=1001") void updateBeginTime(long beginTime); }