年代字印查询
通过年代范围查询各国银器的年代标识，了解不同时期的银器特征
数据库查询错误：
错误代码：ADODB.-2147217865
错误描述：对象名 'silver_marks' 无效。
SQL语句：SELECT mark, type, country, start_year, end_year, description, material, shape, features FROM silver_marks WHERE type IN ('年代标识','字母周期表') AND CAST(start_year AS INT) <= 1900 AND CAST(end_year AS INT) >= 1800 ORDER BY country, start_year