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LeetCode之“散列表”:Valid Sudoku
题目链接 题目要求: Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules. The Sudoku board could be partially filled, where empty cells...
分类:其他好文   时间:2015-06-20 17:04:20    阅读次数:111
Leetcode 142 Linked List Cycle II
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?同Le...
分类:其他好文   时间:2015-06-20 00:15:40    阅读次数:121
Hibernate占位符?和:及JPA
小结一下hibernate占位符.1.最常见的?占位符.String hql = "select a from Apple a where a.color=? a.weight>?";Query query = session.createQuery(hql);query.setParameter(...
分类:Web程序   时间:2015-06-19 21:34:36    阅读次数:146
SQL字符串函数
SQL字符串函数字符串函数对二进制数 据、字符串和表达式执行不同的运算。此类函数作用于CHAR、VARCHAR、BINARY、和VARBINARY数据类型以及可以隐式转换为 CHAR或VARCHAR的数据类型。可以在SELECT语句的SELECT和WHERE子句以及表达式中使用字符串函数。常用的字符...
分类:数据库   时间:2015-06-19 15:12:17    阅读次数:175
sql条件为空查询全部,不为空按条件查询以及多条件筛选查询。
procedure queryLackLonOrLatTdCell(i_region_name varchar2, i_state varchar2) isbegin select region_name, state from gc3_td_site_history where 1 =...
分类:数据库   时间:2015-06-19 14:56:14    阅读次数:790
T-sql 各种类型存在并删除
--表if exists (select * from dbo.sysobjects where id = object_id(N'[monthly_budget_work]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)drop table [month...
分类:数据库   时间:2015-06-18 23:57:45    阅读次数:334
UVA 11489 Integer Game (博弈)
1227: Integer Game Time Limit: 1 Sec  Memory Limit: 128 MB Submit: 9  Solved: 4 [Submit][Status][Web Board] Description Two players, S and T, are playing a game where they make alternate mov...
分类:其他好文   时间:2015-06-18 22:17:57    阅读次数:192
sqlserver 存储过程例子
//带参数的小列子 if (exists (select * from sys.objects where name = ‘proc_get_Purchasing2‘)) drop proc proc_get_student go alter proc proc_get_Purchasing2(@today int) as --declare @today int? //申...
分类:数据库   时间:2015-06-18 20:22:58    阅读次数:173
查看mysql数据库大小、表大小和最后修改时间
查看数据库表基本信息。select * from information_schema.TABLES where information_schema.TABLES.TABLE_SCHEMA = '数据库名' and information_schema.TABLES.TABLE_NAME = '表...
分类:数据库   时间:2015-06-18 19:13:02    阅读次数:141
[LeetCode] Path Sum II
Path Sum II   Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. For example: Given the below binary tree and sum = 22, 5 ...
分类:其他好文   时间:2015-06-18 17:29:24    阅读次数:108
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