The s lock allows concurrent applications that use read-only queries to access the target table, but applications attempting to write data to the table are prevented from doing so.
s锁允许使用只读查询的并发应用程序访问目标表，但是防止应用程序写数据到表中。
User account management (self-service) that allows gamers to renew their subscription, check their account status and balance, and so on (You want to provide this function only for registered users.)
用户帐号管理(自我服务)，允许玩家执行续费、检查帐号的状态和余额等操作(只为已注册的用户提供这个功能。)
So clearly you need an approach that allows you to make requests and receive responses that include only the data you need, rather than an entire HTML page as well.
因此很清楚，我们需要一种方法使发送的请求和接收的响应只包含需要的数据而不是整个HTML 页面。
Yet another problem is that the wildcard also allows userName, so the "one and only one" rule cannot be enforced.
另一个问题是通配符也允许userName，因此无法实现“有且仅有一个”的规则。
This approach allows manufacturers to deal only with a single product, and, at the same time, the extension of packaging, so that the packaging needs specialization.
这种做法可以使制造商只处理一种统一的产品，与此同时，延期包装，以使包装需求专门化。
Accor allows management of length of staycontrols so that the demand is filling not only the highest demand date but also the dates before and after.
雅高集团允许对入住时长进行控制管理，使需求量不仅在最高需求日得到满足，而且在最高需求日的前后也得到满足。
It allows you to easily disable unwanted menu items, so this' New 'submenu will display only the items that you need.
它可以让你轻松地禁用不需要的菜单项，所以这个'新'菜单将只显示你需要的项目。
This allows other code to make identity demands, so that only code with a specific piece of evidence will pass.
这允许其他代码生成标识请求，这样只有具有特定证据的代码才能通过。
This allows other code to make identity demands, so that only code with a specific piece of evidence will pass.
这允许其他代码生成标识请求，这样只有具有特定证据的代码才能通过。
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