一般情况下，SQL数据库的收缩并不能很大程度上减小数据库大小，其主要作用是收缩日志大小，应当定期进行此操作以免数据库日志过大。
1、设置数据库模式为简单模式：打开SQL企业管理器，在控制台根目录中依次点开Microsoft SQL Server-->SQL Server组-->双击打开你的服务器-->双击打开数据库目录-->选择你的数据库名称（如论坛数据库Forum）-->然后点击右键选择属性-->选择选项-->在故障还原的模式中选择“简单”，然后按确定保存
2、在当前数据库上点右键，看所有任务中的收缩数据库，一般里面的默认设置不用调整，直接点确定。
3、收缩数据库完成后，建议将您的数据库属性重新设置为标准模式，操作方法同第一点，因为日志在一些异常情况下往往是恢复数据库的重要依据
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