从SQL Server数据库中删除所有数据，然后从另一个数据库重新输入数据？

I have an outdated database, but I would like to keep the data from this database in a separate version of the current working database. I created a copy of my current database, but it has all new data in it. Is there a way to remove all of this data and then import the data from the outdated database?I have an outdated database, but I would like t