对于SQLSERVER这个关系型数据库来说，为了保持数据的安全，备份是必须的，当你的一个误操作导致数据丢失，这可能是灾难性的，是不被允许发生的，这时，我们必须要做好定期的备份工作，如我们可以每天0点为指定数据库做一个完整的备份，每周未在0点去清理上一周的备份文件，这样可以避免磁盘容量无穷的增长。备份数据库使用了SQL－管理－维护计划－维护计划向导之后为计划启个名字，你自己知道意思即可 ...

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