// Command to fetch a single value
public object ExecuteScalar(CommandType commandType, string commandText)
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
object returnValue = idbCommand.ExecuteScalar();
idbCommand.Parameters.Clear();
return(returnValue);
}
// Fetch Data Using Datareader
public IDataReader ExecuteReader(CommandType commandType, string commandText)
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
idbCommand.Connection = this.Connection;
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
this.DataReader = idbCommand.ExecuteReader();
idbCommand.Parameters.Clear();
return(this.DataReader);
}
// Command to execute Insert, Delete, Update Operations and return Output Parameters
public object[] ExecuteNonQueryparam(CommandType commandType, string commandText)
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction,
commandType, commandText, this.Parameters);
idbCommand.ExecuteNonQuery();
//idbCommand.Parameters.Clear();
return(this.Parameters);
}
// Creating and opening a Databse connection based on the Provider Type
public void Open()
{
idbConnection =
DBManagerFactory.GetConnection(this.providerType);
idbConnection.ConnectionString = this.ConnectionString;
if (idbConnection.State != ConnectionState.Open)
{
idbConnection.Open();
}
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
}
// To Fetch data and return in a Dataset
public DataSet ExecuteDataSet(CommandType commandType, string commandText)
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction,
commandType,
commandText, this.Parameters);
IDbDataAdapter dataAdapter = DBManagerFactory.GetDataAdapter
(this.ProviderType);
dataAdapter.SelectCommand = idbCommand;
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet);
idbCommand.Parameters.Clear();
return(dataSet);
}