/// <summary>
/// Finds the database objects determined by the query string and parameters passed using Oracle database.
/// </summary>
/// <param name="queryString">The query to be executed</param>
/// <exception cref="DatabaseException">If an error occurs when trying to retrieve the data from the database.</exception>
/// <returns>The list of objects populated with the database data.</returns>
protected List <M> FindByQueryOracle(string queryString, params QueryParameter[] parameters)
{
var objectList = new List <M>();
try
{
using (OracleConnection cnn = new OracleConnection(cnnStr))
{
using (OracleCommand cmd = new OracleCommand(queryString, cnn))
{
foreach (QueryParameter parameter in parameters)
{
DatabaseUtils.AddCommandParameter(cmd, parameter);
}
cnn.Open();
using (OracleDataReader reader = cmd.ExecuteReader())
{
if (reader.HasRows)
{
while (reader.Read())
{
objectList.Add(CreateObjectFromDataReader(reader));
}
}
}
}
}
}
catch (Exception ex)
{
throw new DatabaseException("An error has occurred when searching for records on a SQL Server database.", ex);
}
return(objectList);
}
/// <summary>
/// Executes the given procedure on the SQL Server database
/// </summary>
/// <param name="procedureName">The procedure to be executed.</param>
/// <param name="parameters">The parameters to be used.</param>
protected void ExecuteSOracleProcedure(string procedureName, params QueryParameter[] parameters)
{
try
{
using (OracleConnection cnn = new OracleConnection(cnnStr))
{
using (OracleCommand cmd = cnn.CreateCommand())
{
cmd.CommandText = procedureName;
cmd.CommandType = CommandType.StoredProcedure;
// Set the parameters into the stored procedure.
foreach (QueryParameter parameter in parameters)
{
DatabaseUtils.AddCommandParameter(cmd, parameter);
}
cnn.Open();
cmd.ExecuteNonQuery();
// Retrieve the parameter values.
foreach (QueryParameter parameter in parameters)
{
if (parameter.IsInputOutput() || parameter.IsOutput())
{
parameter.Value = cmd.Parameters[parameter.Name].Value;
}
}
}
}
}
catch (Exception ex)
{
throw new DatabaseException(string.Format("An error has occurred when executing the procedure {0} on a SQL Server database.", procedureName), ex);
}
}