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mysql 自定义排序顺序
mysql 自定义排序顺序实例如:在sql语句中加入ORDER BY FIELD(status,3,4,0,2,1)语句可定义排序顺序SELECT tsdvoucher0_.VOUCHER_ID AS VOUCHER1_0_, tsdvoucher0_.COMMENT_DEVICE_TYPE AS ...
分类:数据库   时间:2014-06-15 21:32:00    阅读次数:260
hibernate 的 CascadeType 属性
hibernateintegerstringfloatclassmerge@Entity@Table(name="orders")public class Order {//1-m,多的一方为关系维护端,关系维护端负责外键记录的更新,关系被维护端没有权利更新外键记录private String or...
分类:系统相关   时间:2014-06-15 21:31:17    阅读次数:315
My Sql 高效分页
/* *普通分页 *在数据文件上偏移1000000查出10条 */ select * from zoldesk_92game_net_ecms_bj where classid=303 ORDER BY id ASC LIMIT 1000000,10 /* *高效分页 *1、在索引上查出起始索引 *2、从起始索引上查出10条 */ SELECT * from zoldesk_9...
分类:数据库   时间:2014-06-15 15:47:31    阅读次数:272
【Leetcode】Binary Tree Level Order Traversal II
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). For example: Given binary tree {3,9,20,#,#,15,7}, ...
分类:其他好文   时间:2014-06-15 15:17:43    阅读次数:192
【Leetcode】Binary Tree Level Order Traversal
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). For example: Given binary tree {3,9,20,#,#,15,7}, 3 / 9 20 ...
分类:其他好文   时间:2014-06-15 13:26:54    阅读次数:200
Leetcode:Spiral Matrix 螺旋矩阵
Spiral Matrix:Given a matrix ofmxnelements (mrows,ncolumns), return all elements of the matrix in spiral order.For example,Given the following matrix:...
分类:其他好文   时间:2014-06-14 21:42:10    阅读次数:309
Yii2中多表关联查询(join、joinwith)
我们用实例来说明这一部分表结构现在有客户表、订单表、图书表、作者表,客户表Customer (idcustomer_name)订单表Order (idorder_name customer_id book_id)图书表 (idbook_name author_id)作者表 ...
分类:其他好文   时间:2014-06-14 21:34:02    阅读次数:271
Leetcode: Subsets & SubsetsII
Subsets Description:Given a set of distinct integers,S, return all possible subsets.Note:Elements in a subset must be in non-descending order.The solu...
分类:其他好文   时间:2014-06-14 20:14:56    阅读次数:267
Leetcode:Binary Tree Zigzag Level Order Traversal
Description:Given a binary tree, return thezigzag level ordertraversal of its nodes' values. (ie, from left to right, then right to left for the next ...
分类:其他好文   时间:2014-06-14 18:41:40    阅读次数:265
poj 3735 Training little cats(构造矩阵)
http://poj.org/problem?id=3735 大致题意: 有n只猫,开始时每只猫有花生0颗,现有一组操作,由下面三个中的k个操作组成: 1. g i 给i只猫一颗花生米 2. e i 让第i只猫吃掉它拥有的所有花生米 3. s i j 将猫i与猫j的拥有的花生米交换 现将上述一组操作循环m次后,问每只猫有多少颗花生? 再一次感受到了...
分类:其他好文   时间:2014-06-14 10:54:33    阅读次数:234
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