The LET clause extracts referenced entity information from the collection of credit default swap data that DB2 returns after executing the named query defined in Listing 6.
let子句从执行清单6中定义的已命名查询之后DB 2返回的信用违约掉期数据集合中摘取所引用的实体信息。
We use the same query as in Listing 3 to obtain credit default swap from DB2, so we won't repeat it here.
我们使用与 清单 3 中相同的查询来从 DB2 获得信用违约掉期，所以这里不再重复它。
Our example retrieves a subset of one XML trade record stored in DB2, while a more general query involving all credit default swap trades would return forty full trade records.
我们的例子检索存储在DB 2中的一个XML交易记录的子集，而一个更加一般的、涉及所有信用违约掉期交易的查询，将会返回所有40个交易记录。
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