DB2 Optimization Expert provides an environment to identify and tune poor performing SQL statements.
DB 2OptimizationExpert提供了用来识别和调优表现不佳的sql语句的环境。
Replace poor performing SQL with a more optimal SQL statement without modifying the program source code.
无需修改程序源代码即可使用经过优化的sql语句替换表现不佳的SQL。
So poor performing service endpoints must be discovered and made unavailable based on configured thresholds.
因此，必须发现表现较差的服务端点并根据配置的阈值使其不可用。
As I cull poor performing ads I activate new ads.
我剔除执行较差的广告，然后激活新的广告。
Even if you have to downsize, keeping good, rather than poor performing employees should be a priority.
即使您已被迫缩小规模来做，留住有良好表现而非差劲的员工，也该是优先考量。
By using these features, it can greatly reduce investigation time when dealing with a poor-performing query.
利用这些特性，即可显著缩短处理一个性能较差的查询时的分析时间。
Consider an example where a DBA knows the problem is a poor-performing query, but that query was generated by a framework, using an object-relational mapping technology.
考虑这样一个示例：DBA知道问题根源是查询的性能较差，但此查询是由框架生成的，使用了对象关系映射技术。
Consider an example where a DBA knows the problem is a poor-performing query, but that query was generated by a framework, using an object-relational mapping technology.
考虑这样一个示例：DBA知道问题根源是查询的性能较差，但此查询是由框架生成的，使用了对象关系映射技术。
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