From Table 1, you can easily see the influence that three parameters have on the indexing time.
通过表1，你可以清楚地看到三个参数对索引时间的影响。
2
You can define guidelines that influence only a few attributes of an execution plan, such as index specification for a certain table in the query or join order for a pair of tables.
可以定义那些只影响执行计划的某些属性的准则，比如查询中的某个表的索引说明，或者一对表的连接顺序。
3
Still, easing them is now on the table, at a time when America may be especially keen to exert an influence, for three reasons.