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【2014/10/23】
oracle sequencesequence 创建的时候,需要注意cache和order场景:1. 当不强行要求序列严格按照顺序来,并最大值大的时候,可以使用cache+noorder ,这样的效率最高2. 当强行要求序列严格安装顺序来,使用cache+order,可以保证顺序
分类:其他好文   时间:2014-10-24 08:03:10    阅读次数:179
Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类:其他好文   时间:2014-10-23 22:15:45    阅读次数:130
ORACLE-004-读取某个列有重复的数据
SELECT 主键或能代表当前行的列 FROM ( SELECT 主键或能代表当前行的列 ,重复的列 ,row_number() OVER(PARTITION BY 重复的列 ORDER BY 重复的列 DESC) RN FROM tableName ) WHERE RN=1 如此读出的都是唯一的,通过RN=1将重复的去掉了。   如...
分类:数据库   时间:2014-10-23 20:47:02    阅读次数:219
2.App Components-Activities
1. Activities An Activity is an application component that provides a screen with which users can interact in order to do something, such as dial the....
分类:移动开发   时间:2014-10-23 20:29:38    阅读次数:316
ibatis插入操作时,允许为null的字段必须设置字段对应的类型
执行插入操作时遇到异常:--- Cause: java.sql.SQLException : 无效的列类型 insert into INFO_AWARD_COUPON_RECORD_CHECK ( ID, ORDER_ID, ...
分类:其他好文   时间:2014-10-23 19:16:05    阅读次数:213
LeetCode: Spiral Matrix 解题报告
Spiral MatrixGiven a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order.For example,Given the following m...
分类:其他好文   时间:2014-10-23 19:03:17    阅读次数:272
RMQ [POJ 2019] Cornfields
CornfieldsTime Limit:1000MSMemory Limit:30000KTotal Submissions:5516Accepted:2714DescriptionFJ has decided to grow his own corn hybrid in order to hel...
分类:其他好文   时间:2014-10-23 15:51:54    阅读次数:303
SqlCollections - 视图
1 --==============================视图=============================== 2 --简单视图 3 --注意:视图中不能有ORDER BY,除非指定了TOP! 4 CREATE VIEW v_产品视图 5 AS --AS不能少 6 S...
分类:数据库   时间:2014-10-23 14:06:25    阅读次数:172
LeetCode 53 Spiral Matrix
Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example, Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] You...
分类:其他好文   时间:2014-10-23 12:36:01    阅读次数:176
LeetCode 58 Spiral Matrix II
Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. For example, Given n = 3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [...
分类:其他好文   时间:2014-10-23 12:31:39    阅读次数:132
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