这意味着优化器将始终尝试为每个查询制定减少总体成本的存取路径。
This means the optimizer will always attempt to formulate an access path for each query that reduces overall cost.
所有这些都可帮助减少代码(这始终是一件好事),出现错误的几率就越小,维护工作量也减少了。
All of this translates into less code (which is always a good thing), fewer chances for bugs, and decreased maintenance.
他们发现,歌词部分始终弥漫着消沉的气息,并且这种情况一直在稳步加深,1985年达到了峰值。 而后开始略有改观,大约在1990年的时候,此类歌词逐步减少。
They found the lyrics got steadily more depressing up until 1985 and then levelled off around 1990.
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