需求描述考虑直接在Hive或者Impala等Big
Data方案,能够支持MDX查询,现调研一下Mondrian对hive的支持情况。环境准备hive环境,采用hive-0.10-cdh4.2.1
客户端程序使用的类库:mondrian-3.6.0、olap4j-1.2.0-SNAPSHOT数据准备...
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其他好文 时间:
2014-05-09 18:15:58
阅读次数:
494
原文:SQLSERVER中的ALL、PERCENT、CUBE关键字、ROLLUP关键字和GROUPING函数SQLSERVER中的ALL、PERCENT、CUBE关键字、ROLLUP关键字和GROUPING函数先来创建一个测试表
1 USE [tempdb] 2 GO 3 4 CREATE TABL...
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数据库 时间:
2014-05-05 11:17:30
阅读次数:
575
返回数据格式:{"total":7,"rows":[ {"id":1,"name":"All
Tasks","begin":"3/4/2010","end":"3/20/2010","progress":60,"iconCls":"icon-ok"}, {"id":2,"name":"Designi...
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其他好文 时间:
2014-05-05 11:02:30
阅读次数:
355
题目:Given an array of strings, return all groups of
strings that are anagrams.Note: All inputs will be in lower-case.class Solution
{public: vector ...
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其他好文 时间:
2014-05-04 20:48:08
阅读次数:
608
1.字母数字自动换行:wcline.wcline {word-break:
break-all;word-wrap: break-word;}2.内容长度自动截取并添加... overflow:
hidden;text-overflow: ellipsis;white-space: nowrap;
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其他好文 时间:
2014-05-04 19:14:15
阅读次数:
302
Given a collection of numbers that might
contain duplicates, return all possible unique permutations.For
example,[1,1,2]have the following unique perm...
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其他好文 时间:
2014-05-04 10:20:44
阅读次数:
240
#pragma once#include namespace stds { class tool
{ public: std::string ws2s(const std::wstring& ws) { std::string curLocale =
setlocale(LC_ALL...
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其他好文 时间:
2014-05-03 22:25:17
阅读次数:
318
You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without an...
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其他好文 时间:
2014-05-03 21:35:49
阅读次数:
310
1、能用DISTINCT的就不用GROUP BY
SELECT OrderID FROM Details WHERE UnitPrice > 10 GROUP BY OrderID
可改为: SELECT DISTINCT OrderID FROM Details WHERE UnitPrice > 10
2.能用UNION ALL就不要用UNION
UNION A...
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数据库 时间:
2014-05-03 21:31:24
阅读次数:
342
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Scanner;
class UF
{
private int[] id;
private int count;
public UF(int N)
{
count = N;
id = n...
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编程语言 时间:
2014-05-03 21:21:44
阅读次数:
336