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/* * ==================================================================== * Copyright (c) 2004-2011 TMate Software Ltd. All rights reserved. * * This... 阅读全文
posted @ 2015-02-10 16:04
沧海一滴
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摘要:
leetcode地址:https://oj.leetcode.com/problems/second-highest-salary/这个问题很有趣,是要求我们写个sql来查询Employee表里第二高的工资,如果没有第二高的,那么返回null。+----+--------+| Id | Salary... 阅读全文
posted @ 2015-02-10 14:49
沧海一滴
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