[英]How to connect to SQL SERVER and insert data into database?
I am trying to insert data into SQL SERVER 2008 using C#.我正在尝试使用 C# 将数据插入 SQL SERVER 2008。 When connecting, I followed this solution .
连接时,我遵循了这个解决方案。 When inserting data into database, used this .
将数据插入数据库时,使用此. Result is data is not inserted into database.
结果是数据没有插入到数据库中。 Problem is Visual Studio is not giving any errors.
问题是 Visual Studio 没有给出任何错误。 What can cause this?
什么会导致这种情况?
Here is my code:这是我的代码:
DateTime Start = DateTime.Now;
List<Point> points = new List<Point>();
System.Data.SqlClient.SqlConnection myConnection = new SqlConnection("server=localhost;" +
"Trusted_Connection=yes;" +
"database=UrbanPlan; " +
"connection timeout=30");
try
{
myConnection.Open();
//here is giving successfull message
Console.WriteLine("Successful");
}
catch (SqlException ex)
{
Console.WriteLine("You failed!" + ex.Message);
}
string csv_file_path = @"C:\Users\Joe\Desktop\geocoding.csv";
DataTable csvData = GetDataTabletFromCSVFile(csv_file_path);
int num = 0;
while (num < 10)
{
double longitude = Convert.ToDouble(csvData.Rows[num][1]);
double latitude = Convert.ToDouble(csvData.Rows[num][2]);
int numForCheck = 0;
while (longitude != Convert.ToDouble(csvData.Rows[numForCheck][1]) && latitude != Convert.ToDouble(csvData.Rows[numForCheck][2]))
{
numForCheck++;
}
if (numForCheck == num)
{
points.Add(new Point(longitude, latitude));
}
num++;
}
double eps = 1.0;
int minPts = 2;
List<List<Point>> clusters = GetClusters(points, eps, minPts);
//Console.Clear();
// print points to console
Console.WriteLine("The {0} points are :\n", points.Count);
foreach (Point p in points) Console.Write(" {0} ", p);
Console.WriteLine();
// print clusters to console
int total = 0;
for (int i = 0; i < clusters.Count; i++)
{
int count = clusters[i].Count;
total += count;
string plural = (count != 1) ? "s" : "";
Console.WriteLine("\nCluster {0} consists of the following {1} point{2} :\n", i + 1, count, plural);
foreach (Point p in clusters[i])
{
string sql = "INSERT INTO AntennaLocationByRegions (RegionId, Longitude, Latitude) values (@RegionId, @Longitude, @Latitude)";
SqlCommand cmd = new SqlCommand(sql, myConnection);
cmd.Parameters.Add("@RegionId", SqlDbType.Int);
cmd.Parameters["@RegionId"].Value = i + 1;
cmd.Parameters.Add("@Longitude", SqlDbType.Float);
cmd.Parameters["@Longitude"].Value = p.Long;
cmd.Parameters.Add("@Latitude", SqlDbType.Float);
cmd.Parameters["@Latitude"].Value = p.Lat;
cmd.ExecuteNonQuery();
}
Console.WriteLine();
}
试试这个代码进行连接
SqlConnection myConnection = new SqlConnection("Database=yourdatabasename;Server=yourpcname\\SQLEXPRESS;Integrated Security=True;connect timeout = 60");
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