This design increases the number of tables significantly over adding a database instance per customer or creating a column in each table to validate whether the customer is accessing the proper data.
在为每个客户添加数据库实例时，或者在每个表中创建一个数据列以验证客户是否访问合适的数据时，这种设计会大大增加表的数量。
Suppose a table in an OLTP database already has 6 or 7 indexes. Would I give a thumbs-up to adding another?
假设 OLTP数据库中的一个表已经拥有6 个或7 个索引，我还会赞成再添加一个吗？
Tuning might mean adding memory to a starved system, modifying operating system parameters, hastening the Web or database server, rewriting code for efficiency, or some combination thereof.
调优意味着对系统增加内存、修改操作系统参数、加速Web或数据库服务器、提高代码效率或者这其中的一些组合。
By adding the attributes in the HTML, you made the data in your page easy to process-almost as if it were in an Excel spreadsheet or a database.
通过在HTML中添加属性，可以让页面中的数据变得易于处理，几乎就像是在Excel电子数据表或数据库中处理数据一样。
In particular, making schema changes or adding indexes to a database with more than 10-20 million rows completely locks the database for hours at a time.
尤其是有一两千万行数据的时候，每次修改模式、往数据库中添加索引都会数小时完全锁定数据库。
Instead of adding a tag to a database and then selecting it, users should be able to select members of the site from a drop down, or, enter a custom value.
用户应能够从下拉列表中选择站点成员，或是输入自定义值，而不需向某数据库添加一个标记然后再选择它。
Instead of adding a tag to a database and then selecting it, users should be able to select members of the site from a drop down, or, enter a custom value.
用户应能够从下拉列表中选择站点成员，或是输入自定义值，而不需向某数据库添加一个标记然后再选择它。
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