REOPT once: query optimization occurs once at query execution time, when the query is executed for the first time.
REOPT ONCE：查询执行中只发生一次查询优化，即在查询第一次执行时。
The only remedy is to invoke the XML parser at query execution time to "look into" the XML documents such that search conditions can be evaluated.
惟一的补救方法是，在执行查询时调用XML解析器来“搜索” XML文档，以便找到符合搜索条件的内容。
At this step, you need to use the tools discussed above to get statistics on the query: its response time, its detailed execution plan, and costs for later in-depth analysis.
在这一步中，需要使用上面讨论的工具来获取该查询的统计数据：其响应时间、详细的执行计划和成本，以便稍后进行深入分析。
The asynchronous execution feature of WFS can help reduce the execution time of this query by firing off the remote requests associated with SHIP1 and SHIP2 at the same time.
而WFS的异步执行特性则可以同时开始处理与SHIP1和SHIP2相关联的远程请求，从而帮助减少该查询的执行时间。
The error will be encountered at run time at line 3 or line 4 (depending on whether the JPA provider parses a JPQL string according to JPQL grammar during query construction or execution).
在运行时，该错误将出现在第 3或第 4行（具体行数取决于JPA提供者是否在查询构造或执行期间根据JPQL语法解析 JPQL字符串）。
The error will be encountered at run time at line 3 or line 4 (depending on whether the JPA provider parses a JPQL string according to JPQL grammar during query construction or execution).
在运行时，该错误将出现在第 3或第 4行（具体行数取决于JPA提供者是否在查询构造或执行期间根据JPQL语法解析 JPQL字符串）。
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