获取sql执行时间

declare @begin datetime,@end datetime
set @begin =getdate()
--your sql
set @end=getdate()
PRINT DATEDIFF(millisecond, @begin, @end)/1000.0 --单位：s

declare @begin datetime,@end datetime
set @begin =getdate()
select getdate()
set @end=getdate()
PRINT DATEDIFF(millisecond, @begin, @end)/1000.0 --单位：s

public class DBHelper
{
public static DataSet ExecuteSelect(string sql, SqlParameter[] param, CommandType commandType)
{
string ConnectionString = Properties.Resources.conStr.ToString();
DataSet ds = new DataSet();
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
conn.Open();
using (SqlCommand cmd =new SqlCommand(sql,conn))
{
try
{
cmd.CommandType=commandType;
if (param != null)
{
foreach (var item in param)
{
cmd.Parameters.Add(item);
}
}
SqlDataAdapter sda=new SqlDataAdapter(cmd);
sda.Fill(ds);
}
catch (Exception ex)
{
throw;
}
}
}
return ds;
}
}