It can also capture queries from SQL cache and produce the explain plan.

它还可以从SQL缓存捕获查询并生成解释计划。

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So when the same SQL statement is executed again, DB2 finds the previously created access plan in the statement cache and reuses the access plan.

因此，当同一个sql语句再次执行时，DB 2在语句缓存中找到此前创建的访问计划并重用它。

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When the statement is compiled, its access plan is stored in the package cache.

在编译语句时，语句的访问计划被存储在包缓存中。

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While flash memory in a separate smaller capacity SSD module is playing a role in these new ultra-thin computers the introduction of hybrid hard disk drives with a flash cache inside the hard drive may plan a significant role as well.

FORBES: Digital Storage Needs the Right Stuff