Optimization guidelines and statistical views are useful features to compensate the access plan evaluations when exceptions in query performance occur.
当查询性能中出现例外情况时，优化指南和统计视图特性对于弥补访问计划估计的不准确性非常有用。
For statistical view, the ENABLE query optimization clause will cause the view, and its associated statistics to be used to improve the query optimization.
对于统计视图，ENABLE QUERY optimization子句将导致该视图以及与之相关联的统计信息被用于改进查询优化。
The preparation of anticoagulant cellulose sulfate was investigated by five factors quadri-rotation orthogonal experiments and statistical optimization analysis.
对抗凝血纤维素硫酸酯制备过程进行五因素二次旋转正交实验和统计优化分析。
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