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mysql删除和修改数据报错1175
当用MySQL Workbench进行数据库的批量更新时,执行一个语句会碰到以下错误提示: Error Code: 1175 You are using safe...without a WHERE that uses a KEY column因为是MySQL Workbench的默认的安全设置是不...
分类:数据库   时间:2014-09-01 10:26:32    阅读次数:227
Microsoft SQL Server 2012 管理 (1): 安装配置SQL Server 重点
SQL Server 可以在实例,数据库,列,查询分别指定排序规则/* Module 1 - working with Clollations*/-- 1.1 Obtain the Instance Collation from the GUI--Create a Database without ...
分类:数据库   时间:2014-09-01 03:58:22    阅读次数:309
【leetcode】Divide Two Integers
题目: Divide two integers without using multiplication, division and mod operator. 解析:...
分类:其他好文   时间:2014-08-31 22:58:02    阅读次数:246
编程异常——如果你报createSQLQuery is not valid without active transaction,...
很多时候我们使用hibernate的session时,都是让session在某一运行环境中保持其唯一。例如在同一线程内用同一个session,在同一方法内用同一session,这样我们就可以用session里面缓存好的数据。但,我想说的不是缓存,且听我一一道来。       最近试用spring3.0.2+struts2.18+hibernate3.3.2学习搭建一个web项目,出现了一个相当郁...
分类:数据库   时间:2014-08-31 17:19:11    阅读次数:256
【LeetCode】Reorder List
Given a singly linked list L: L0→L1→…→Ln-1→Ln, reorder it to: L0→Ln→L1→Ln-1→L2→Ln-2→… You must do this in-place without altering the nodes' values. For example, Given {1,2,3,4}, reorder it to ...
分类:其他好文   时间:2014-08-30 00:06:58    阅读次数:359
LeetCode 99 Recover Binary Search Tree
Two elements of a binary search tree (BST) are swapped by mistake. Recover the tree without changing its structure. Note: A solution using O(n) space is pretty straight forward. Could you devis...
分类:其他好文   时间:2014-08-29 21:28:08    阅读次数:313
LeetCode Linked List Cycle II 超时问题
Given a linked list, return the node where the cycle begins. If there is no cycle, returnnull.Follow up:Can you solve it without using extra space?题目意...
分类:其他好文   时间:2014-08-29 12:44:37    阅读次数:256
LeetCode: Recover Binary Search Tree
LeetCode: Recover Binary Search TreeTwo elements of a binary search tree (BST) are swapped by mistake.Recover the tree without changing its structure....
分类:其他好文   时间:2014-08-28 23:58:36    阅读次数:385
LeetCode Linked List Cycle
Given a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?/** * Definition for singly-linked list. *...
分类:其他好文   时间:2014-08-28 19:41:25    阅读次数:224
Recover Binary Search Tree
Two elements of a binary search tree (BST) are swapped by mistake.Recover the tree without changing its structure.Note:A solution using O(n) space is ...
分类:其他好文   时间:2014-08-28 19:33:55    阅读次数:266
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