哈工大数学实验，实验报告及相应程序文件，对应实验一到四-HIT mathematical experiments, lab reports and the corresponding program file, the corresponding experimental one to four

数据库应用技术之实验报告一，创建用户数据库，学会压缩和扩充数据库，学会查看和修改数据库选项，学会给数据库改名和删除数据库。-Database application technology lab report, create a user database, learn to compress and expand the database and learn to view and modify database options, learn to be renamed to the data