是的,我知道也有例外。所以有时候,我会问及他们的业务、市场营销和收入计划,其中99%都不能回答出来。
Yes, I know there are exceptions, so sometimes I will ask them about their business, marketing, and revenue plans, which 99% of them don't have.
所有的国家都在制定卫生方面的应急计划,英国也不例外。
All countries are working on health contingency plans and Britain is no exception.
对于优化器不能选择最佳查询执行计划的例外情况,DB 2已经增加了诸如selectivity子句和优化指南之类的特性。
For the exceptional situations where the optimizer cannot choose an optimal query execution plan, DB2 has added features such as the SELECTIVITY clause and optimization guidelines.
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