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比较指标
1、comparison definition───比较定义
2、comparison theorem───[数]比较定理
3、beyond comparison───adv.无以伦比
4、comparison───n.比较；对照；比喻；比较关系
5、comparison between───在两者间比较
6、comparison synonym───比较同义词
7、comparison chart───对比图
8、index───vi.做索引；vt.指出；编入索引中；n.指标；指数；索引；指针
9、rower comparison───赛艇比较
1、It says that the function must be used in an expression involving the comparison operation and that the search method equals of the index extension hash_index is referred to.───这说明，该函数必须在一个涉及比较Cao作并且引用了索引扩展hash _ index的搜索方法“equals”的表达式中使用。
2、If the index is being bypassed, then the RHS of the comparison should be type-cast.───如果会绕过索引，应该对比较表达式的RHS执行类型转换。
3、For comparison, Figure 3 illustrates the access plan where I forced the DB2 optimizer to ignore the index by adding the clause SELECTIVITY 1 to the predicate in the where clause.───为了便于比较，图3显示了通过将SELECTIVITY 1子句添加到where子句的谓词中，强迫db2优化器忽略索引的访问计划。