实际使用lockInterruptibly为ReentrantLock(Actual use of lockInterruptibly for a ReentrantLock)
你实际使用这个方法
lockInterruptibly
什么? 我已经阅读了API,但我不清楚。 换言之,任何人都可以表达吗?What do you actually use for this method
lockInterruptibly
? I have read the API however it's not very clear to me. Could anybody express it in other words?
原文:https://stackoverflow.com/questions/17811544
最满意答案
你在谈论ONE where子句中的条件。
对于关系数据库,3000行是非常小的。 这些通常会更大(如300万+甚至更多)
我担心你在一张桌子上有20列。 这听起来像是一个规范化问题。
you are talking about conditions in ONE where clause.
3000 rows is very minimal for a relational database. these typically go far larger (like 3 million+ or even much more)
i am concerned that you have 20 columns in one table. this sounds like a normalization problem.
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