It includes job name, job execution times, number of rows processed, error or success status, time started, and time completed, which are all described in sequence.
它包括作业名称、作业执行次数、处理的行数、错误或成功状态、开始时间及完成时间，这些都是按顺序描述的。
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）。
Experimental results show that the scheme has ability to improve significant performance significantly, and predict the application's execution time after optimization with a maximum error of 2%.
实验结果表明，该策略能够显著提高程序性能，平均提高一倍，甚至更高，同时它能够预知优化后程序执行时间的变化，最高误差为2%。
Experimental results show that the scheme has ability to improve significant performance significantly, and predict the application's execution time after optimization with a maximum error of 2%.
实验结果表明，该策略能够显著提高程序性能，平均提高一倍，甚至更高，同时它能够预知优化后程序执行时间的变化，最高误差为2%。
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