さて、これが最初の方法です
public static string srConnectionString = "server=localhost;database=myDB; "+
" uid=sa;pwd=myPW;";
そして、これが2番目の方法です
public static string srConnectionString = "server=localhost;database=myDB; "+
" integrated security=SSPI;persist security info=False; Trusted_Connection=Yes;";
これら 2 つの接続文字列の間にパフォーマンスの違いやその他の違いはありますか?
ここで私のSQL接続クラスに何か提案はありますか?
using System;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data;
public static class DbConnection
{
public static string srConnectionString = "server=localhost; database=myDB; uid=sa; pwd=myPW;";
public static DataSet db_Select_Query(string strQuery)
{
DataSet dSet = new DataSet();
if (strQuery.Length < 5)
return dSet;
try
{
using (SqlConnection connection = new SqlConnection(srConnectionString))
{
connection.Open();
using (SqlDataAdapter DA = new SqlDataAdapter(strQuery, connection))
{
DA.Fill(dSet);
}
}
return dSet;
}
catch
{
using (SqlConnection connection = new SqlConnection(srConnectionString))
{
if (srConnectionString.IndexOf("select Id from tblAspErrors") != -1)
{
connection.Open();
strQuery = strQuery.Replace("'", "''");
using (SqlCommand command = new SqlCommand("insert into tblSqlErrors values ('" + strQuery + "')", connection))
{
command.ExecuteNonQuery();
}
}
}
return dSet;
}
}
public static void db_Update_Delete_Query(string strQuery)
{
if (strQuery.Length < 5)
return;
try
{
using (SqlConnection connection = new SqlConnection(srConnectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand(strQuery, connection))
{
command.ExecuteNonQuery();
}
}
}
catch
{
strQuery = strQuery.Replace("'", "''");
using (SqlConnection connection = new SqlConnection(srConnectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand("insert into tblSqlErrors values ('" + strQuery + "')", connection))
{
command.ExecuteNonQuery();
}
}
}
}
}