“mitao”
2026-04-10 1e72a0b06e37d372c46522c85c6733edbcd5331d
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package com.tcm.training.admin.live.mapper;
 
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.tcm.training.admin.live.entity.LiveSessionQuestion;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
 
@Mapper
public interface LiveSessionQuestionMapper extends BaseMapper<LiveSessionQuestion> {
 
    /**
     * 物理删除指定场次的全部题目,避免逻辑删除记录占用唯一索引。
     */
    @Delete("DELETE FROM tcm_live_session_question WHERE session_id = #{sessionId}")
    int hardDeleteBySessionId(@Param("sessionId") Long sessionId);
}