Grouping Records Together Based on a Field
Problem
You
have a sequence of dictionaries or instances and you want to iterate over the data in groups based on the value of a...
分类:
编程语言 时间:
2014-06-08 18:22:29
阅读次数:
280
题目
Given a set of distinct integers, S, return all possible subsets.
Note:
Elements in a subset must be in non-descending order.The solution set must not contain duplicate subsets.
...
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其他好文 时间:
2014-06-08 04:01:05
阅读次数:
240
Given a sorted linked list, delete all nodes
that have duplicate numbers, leaving onlydistinctnumbers from the original
list.For example,Given1->2->3-...
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其他好文 时间:
2014-06-06 06:57:18
阅读次数:
271
duplicate报ORA-01017权限问题
环境:
OS:RedHat EnterPrise Linux 5.8 x64
Cluster:Oracle Grid 11.2.0.4
Database:Oracle Database EnterPrise 11.2.0.4
Archive:RAC+DG
今天在配置DG的过程中,前期环境都已经准备好了,就差最后一步...
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其他好文 时间:
2014-06-04 23:37:04
阅读次数:
341
Given a sorted linked list, delete all nodes
that have duplicate numbers, leaving onlydistinctnumbers from the original
list.For example,Given1->2->3-...
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其他好文 时间:
2014-06-04 20:19:49
阅读次数:
282
【题目】原文:1.3 Design an algorithm and write code
to remove the duplicate characters in a string without using any additional
buffer. NOTE: One or two add...
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其他好文 时间:
2014-06-02 21:32:04
阅读次数:
284
今天做推断插入用到了MySQL中ON DUPLICATE KEY
UPDATE,如今Mark下面!假设你想做到数据库中没有数据的话插入数据、有数据的话更新数据,那么你能够选择ON DUPLICATE KEY UPDATE。ON
DUPLICATE KEY UPDATE可以在UNIQUE索引或PRIM...
分类:
数据库 时间:
2014-06-02 18:04:36
阅读次数:
277
【题目】
Given a collection of integers that might contain duplicates, S, return all possible subsets.
Note:
Elements in a subset must be in non-descending order.
The solution set must not contain duplicate subsets.
For example,
If S = [1,2,2], a solution ...
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其他好文 时间:
2014-06-01 08:51:06
阅读次数:
292
【题目】
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list.
For example,
Given 1->2->3->3->4->4->5, return 1->2->5.
Given 1->1->1->2->3, return 2->3.
【题意】
给定一个有序链表,删出其中重复出现的值...
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其他好文 时间:
2014-05-31 21:14:11
阅读次数:
333
DataGuard物理主备,当遭遇各种故障导致备库的数据没有与主库同步时,就需要尽快将主备的数据同步起来。一般的方法是主库全备份,备库nomount还原控制文件,mount还原主库全备数据。这里Oracle有一个Rman
Duplicate功能,可以用于主库与备库数据的快速同步具体理论就不多说,网上...
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其他好文 时间:
2014-05-28 00:35:57
阅读次数:
395