The SQL could have input parameters and could return result sets.
SQL可以有输入参数，可以返回结果集。
In order to be fully dynamic, the return result shouldn't be cached.
为了完全动态，返回结果不应被缓存。
In usual cases of method invocation the return result is a function object, which is then executed.
方法调用通常返回的结果是一个函数对象，然后执行这个函数对象。
The search engine application might return result documents so that the field that the user searched upon always appears first.
搜索引擎应用程序可以返回结果文档，因此用户搜索的字段总是最先出现。
The search engine application might return result documents so that the field that the user searched upon always appears first.
搜索引擎应用程序可以返回结果文档，因此用户搜索的字段总是最先出现。
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