嗯嗯.. 我有一个本地数据库 .. 使用 VS 2012 创建 .. 不是 LocalDB .. 它的 SqlExpress x64 ..
我有一个 C# 程序,它读取和解析一个 txt 文件.. 并将数据转换为记录.. 在一个执行流程中插入大约 200,000 条记录.. 程序解析并创建一个插入查询并执行它..
我使用了 Sql 对象 .. SqlCommand .. SqlConnection ..... 用于插入 ..
问题是控制台 C# 应用程序确实显示所有记录都已成功插入,直到最后计数..
但我只能在数据库表中看到 1000 条记录..
要插入的代码:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.IO;
namespace SentiWordDBPopulate
{
class DBPopulateSentiWord
{
static SqlCommand sqlCmd;
static SqlConnection sqlConn;
static void Main(string[] args)
{
try
{
sqlConn = new SqlConnection("server=localhost\\SqlExpress; DataBase=WordDBForBlogMiner; integrated security=true");
sqlConn.Open();
//sqlCmd = new SqlCommand("select * from KWTable", sqlConn);
//skip 1st 13 lines
//for (int i = 1; i <= 13; i++)
//fin.ReadLine();
string[] lines = File.ReadAllLines("C:\\Users\\Ritesh\\Desktop\\WordDB.txt");
Console.WriteLine("Done reading! Press enter to insert everything into DB.");
Console.Read();
long IDCounter = 0;
//enter next 117658 lines into DB
for (int i = 13; i < lines.Length; i++)
{
//string line =fin.ReadLine();
string[] s = (lines[i].Remove(lines[i].IndexOf('#')).Split(new char[] { '\t' }, StringSplitOptions.RemoveEmptyEntries));
//s[5] = s[6] = null;
s[2] = s[2].Equals("NaN") ? "0" : s[2];
s[3] = s[3].Equals("NaN") ? "0" : s[3];
float tempNegScore = float.Parse(s[3]), tempPosScore = float.Parse(s[2]);
int negScore = (int)Math.Round((tempNegScore * 27), MidpointRounding.AwayFromZero);
int posScore = (int)Math.Round((tempPosScore * 31), MidpointRounding.AwayFromZero);
if (posScore <= 31 && negScore <= 27)
{
//Console.WriteLine((++IDCounter) + "\t => " + s[0] + "\t" + posScore + "\t" + negScore + "\t" + s[4]);
string category = "";
if (posScore.Equals(0) && negScore.Equals(0))
category = "neutral";
else if (posScore > 0 && negScore.Equals(0))
category = "positive";
else if (posScore.Equals(0) && negScore > 0)
category = "negative";
else if (posScore > 0 && negScore > 0)
category = "PosNeg";
string query = "insert into SentiWordKWTable values ('" + s[0] + "', " + (++IDCounter) + ", " + posScore + ", " + negScore + ", '" + s[4].Replace("'", "") + "', '" + category + "')";
sqlCmd = new SqlCommand(query, sqlConn);
sqlCmd.ExecuteNonQuery();
Console.WriteLine("Record Num: " + IDCounter + " successfully inserted!");
}
else
{
Console.WriteLine((++IDCounter) + "\t => " + s[0] + "\t" + posScore + "\t" + negScore + "\t" + s[4]);
break;
}
tempNegScore = tempPosScore = 0;
posScore = negScore = 0;
}
Console.Read();
}
catch (Exception e)
{
Console.WriteLine("Exception occured => " + e.Message);
sqlCmd = new SqlCommand("delete from SentiWordKWTable", sqlConn);
sqlCmd.ExecuteNonQuery();
Console.WriteLine("all rows of table deleted");
}
Console.Read();
}
}
}
在 VS 2008 早期这不是问题 .. VS 2012 中是否有一些限制 .. 或者可以启用 >1000 插入的东西?..