This document defines a DataBase class that contains methods for executing SQL queries and non-queries against a local SQL database. The getStringConnection method returns the connection string for the database. The sqlQuery method executes a SQL query, returns the results as a list of object arrays, and handles opening and closing the connection. The sqlNonQuery method executes a non-query SQL statement, returns a boolean for the result, and handles opening and closing the connection.

1. using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
using System.Data;
namespace BCP_tried.DataBase
{
class DataBase
{
private static string getStringConnection()
{
SqlConnectionStringBuilder stringBuilder = new SqlConnectionStringBuilder();
stringBuilder.DataSource = @"(localdb)Projects";
stringBuilder.InitialCatalog = "BCP-tried";
stringBuilder.IntegratedSecurity = true;
return stringBuilder.ConnectionString;
}
public static async Task<List<object[]>> sqlQuery(string query, List<SqlParameter> Sqlparameters)
{
List<object[]> rows = null;
object[] row;
using (SqlConnection sqlConnection = new SqlConnection(getStringConnection()))
{
using(SqlCommand command = new SqlCommand(query, sqlConnection))
{
command.Parameters.AddRange(Sqlparameters.ToArray());
sqlConnection.Open();
SqlDataReader reader = await command.ExecuteReaderAsync();
rows = new List<object[]>();
while(reader.Read())
{
row = new object[reader.FieldCount];
reader.GetValues(row);
rows.Add(row);
}
sqlConnection.Close();
}
}
return rows;
}
public static async Task<bool> sqlNonQuery(string query, List<SqlParameter> Sqlparameters)
{
int rows=-1;
bool response;
using (SqlConnection sqlConnection = new SqlConnection(getStringConnection()))
{
using (SqlCommand command = new SqlCommand(query, sqlConnection))
{
command.Parameters.AddRange(Sqlparameters.ToArray());
try
{
sqlConnection.Open();
rows = await command.ExecuteNonQueryAsync();
sqlConnection.Close();
response = true;
}
catch(Exception e)
{
System.Diagnostics.Debug.WriteLine(e.Message);
response = false;
}
}
}
System.Diagnostics.Debug.WriteLine(string.Format("FILAS AFECTADAS: {0}",rows));
return response;
}
}
}