Query drill down allows you to gather statistical information about each SQL statement executed on the system and analyze statement history.
可以通过查询钻取特性收集关于系统上执行的每个sql语句的统计信息并分析语句历史。
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But in other areas American number-crunchers seem to believe that their measures are better; indeed, history shows that European statistical agencies have often later adopted their methods.
Based on the statistical analysis of the articles from the journal History of Education, we can conclude some features of the research in the aspects of time period, area, and theme.