For example , you may determine that the estimated size of the database is too large to implement in your organization and that more normalization is required 例如，您可能会发现估计的数据库大小太大，无法在您的单位中实现，因此需要进行更多的规范化处理。
Alternatively , if your data types are correct , an exception might be thrown if your database size goes over its space quota and is unable to construct a new table 换句话说，如果数据类型是正确的，但是数据库大小超出其空间限制并且不能建立一个新表，则可能会抛出一个异常。
However , if your instance configuration or application definitions specify very large database sizes several gigabytes , the create process might time out ; if it does , a time - out message is displayed 但是，如果实例配置或应用程序定义指定了非常大的数据库大小（若干个gb ） ，则创建进程可能会超时；这时将显示超时消息。
These might actually reduce the size of the database since it would store only canonical forms and not variants , but this would come at the cost of external thesauri and rule - patterns for word transformations 这种方法的确能减小数据库大小，因为只需存储正则形式而不必存储变化形式，但词语转换需要消耗外部类属词典和变化规则形态。
To decide upon the optimal recovery model for a particular database , you should consider both the recovery goals and requirements for the database and whether you can manage log backups 无论数据库大小或文件组结构如何，您都可以选择简单或完整（大容量日志）恢复模式。从根本上讲，最佳的选择或数据库取决于该数据库的恢复目标和要求。
The probabilities of correct identification are combined across multiple peptide searches using a function that returns the maximum probability from consensus identifications , and penalizes non - consensual identifications 肽段的正确或者错误鉴定都认为是肽段空间中的随随机事件，与一些参数相关，例如蛋白质长度，蛋白质的估计浓度，数据库大小，数据集中鉴定的肽段数目。
