删除非必要权限相关代码类，更改数据库命名相关代码修改

src/main/resources/mybatis/mapper/system/DbVersionDao.xml

@@ -6,7 +6,7 @@
 
     <select id="selectVersion" resultType="int">
         selecT count(1)
-        from db_version
+        from sys_db_version
         where version = #{version}
     </select>
 
@@ -18,7 +18,7 @@
     </select>
 
     <insert id="insertVersion">
-        insert into db_version(id, version, remark, created)
+        insert into sys_db_version(id, version, remark, created)
         values (uuid(), #{version}, #{remark}, #{created})
     </insert>