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December 20, 2015 10:37
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Qlik Sense Desktop × Surface Pro3で10億件のデータを試してみる ref: http://qiita.com/sasanquaneuf/items/68274d59328b4d418017
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using System; | |
using System.Collections.Generic; | |
using System.IO; | |
using System.Linq; | |
using System.Text; | |
using System.Threading.Tasks; | |
namespace ConsoleApplication3 | |
{ | |
class Program | |
{ | |
static void Main(string[] args) | |
{ | |
StreamWriter sw = new StreamWriter(@"c:\a_test\dummy_data.txt"); | |
var r = new Random(); | |
sw.WriteLine("区分1,区分2,区分3,金額"); | |
for (long i = 0; i < 100000000; i++) | |
{ | |
sw.WriteLine(r.Next(5) + "," + r.Next(5) + "," + r.Next(10) + "," + 500 * r.Next(20)); | |
} | |
sw.Close(); | |
} | |
} | |
} |
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