### Error updating database-----指数据库database update错误. Cause: java.sql.SQLSyntaxErrorException--sql语法错误: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '> = '2022-11-01 00:00:00', status = 0, remark = '', ' at line 6 ------这大概使错的位置### The error may exist（可能存在） in file [G:\2022.12.5scalary\RuoYi-master\jh-product\target\classes\mapper\jhproduct\TAttendRecordMapper.xml] ### The error may involve com.jhsoft.product.record.mapper.TAttendRecordMapper.updateTAttendRecord-Inline ### The error occurred while setting parameters（设置参数时出错） ### SQL: update t_attend_record SET year = ?, month = ?, day = ?, user_id = ?, att_time > = ?, status = ?, remark = ?, section = ?, type = ? where id = ? ### Cause: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '> = '2022-11-01 00:00:00', status = 0, remark = '', ' at line 6 ;（查看与您的MySQL服务器版本对应的手册，了解在第6行的'>='2022-11-01 00:00:00'，status=0，remark=''，'附近使用的正确语法；） bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '> = '2022-11-01 00:00:00', status = 0, remark = '', ' at line 6

由上面给出的问题可知，问题出错文件大概在 

mapper\jhproduct\TAttendRecordMapper.xml

文件内出错可能在：

near '> = '2022-11-01 00:00:00', status = 0, remark = '', ' at line 6 ------这大概使错的位置

出错原因，报的错误为：

SQLSyntaxErrorException--sql语法错误

The error occurred while setting parameters（设置参数时出错）

然后我们看一下，mapper.xml位置的代码：，上面说是第6行，》=2022.........

//>是>的意思

<if test="attTime != null">att_time &gt; = #{attTime},</if>就是这句，attTime这个字段在这指的就是时间，然后我们开始分析，

我们是修改语句，不是查询语句，所以改任何字段只需要把新的值赋给字段就可以，而这里是>=

，这个在select中是查询条件，在update中不需要这个条件，只需要把>号去掉，只保留=号即可

<update id="updateTAttendRecord" parameterType="TAttendRecord">
    update t_attend_record
   1. <trim prefix="SET" suffixOverrides=",">
   2.    <if test="year != null">year = #{year},</if>
   3.    <if test="month != null">month = #{month},</if>
   4.    <if test="day != null">day = #{day},</if>
   5.    <if test="userId != null">user_id = #{userId},</if>
   6.    <if test="attTime != null">att_time &gt; = #{attTime},</if>
        <if test="status != null">status = #{status},</if>
        <if test="remark != null">remark = #{remark},</if>
        <if test="section != null">section = #{section},</if>
        <if test="type != null">type = #{type},</if>
    </trim>
    where id = #{id}
</update>