public static DataTable Select()
{
SqlQuery q = new SqlQuery();
q.CommandText = string.Format(@" select 1");
q.CommandType = CommandType.Text;
return SqlDataAccess.ExecuteDataset(q, connupCollect).Tables[0];
}
/// <summary>
/// SyncParameter
/// </summary>
private void SyncParameter(SqlCommand cmd, SqlQuery q)
{
//int parameterCount = q.Parameters.Count;
//if (parameterCount > 0)
//{
// for (int i = 0; i < parameterCount; i++)
// {
// q.Parameters[i].SyncParameter();
// }
//}
}
/// <summary>
/// ����Sql����
/// </summary>
/// <param name="cmd"></param>
/// <param name="q"></param>
private void PrepareCommand(SqlCommand cmd, SqlQuery q)
{
cmd.CommandType = q.CommandType;
cmd.CommandText = q.CommandText;
cmd.Connection = m_Connection;
cmd.CommandTimeout = q.CommandTimeout;
cmd.Transaction = m_Trans;
if (q.Parameters.Count > 0)
{
int parameterNum = q.Parameters.Count;
for (int i = 0; i < parameterNum; i++)
{
cmd.Parameters.Add(q.Parameters[i]);
}
}
}
/// <summary>
/// ִ���������XmlReader
/// </summary>
public XmlReader ExecuteXmlReader(SqlQuery q)
{
SqlCommand cmd = new SqlCommand();
PrepareCommand(cmd, q);
XmlReader xmlReader = cmd.ExecuteXmlReader();
SyncParameter(cmd, q);
cmd.Parameters.Clear();
return xmlReader;
}
/// <summary>
///ִ���������Xml����
/// </summary>
public XmlDocument ExecuteXmlDoc(SqlQuery q)
{
throw new NotImplementedException();
}
/// <summary>
/// ִ���������������������(Object)
/// </summary>
public Object ExecuteScalar(SqlQuery q)
{
SqlCommand cmd = new SqlCommand();
PrepareCommand(cmd, q);
Object oValue = cmd.ExecuteScalar();
SyncParameter(cmd, q);
cmd.Parameters.Clear();
return oValue;
}
/// <summary>
/// ִ���������DataReader
/// </summary>
public IDataReader ExecuteReader(SqlQuery q)
{
SqlCommand cmd = new SqlCommand();
PrepareCommand(cmd, q);
IDataReader reader = cmd.ExecuteReader();
SyncParameter(cmd, q);
cmd.Parameters.Clear();
return reader;
}
/// <summary>
/// ִ���������Ӱ������
/// </summary>
public int ExecuteNonQuery(SqlQuery q)
{
SqlCommand cmd = new SqlCommand();
PrepareCommand(cmd, q);
int affectRows = cmd.ExecuteNonQuery();
SyncParameter(cmd, q);
cmd.Parameters.Clear();
return affectRows;
}
/// <summary>
/// ִ���������DataSet
/// Execute query and return DataSet.
/// </summary>
public DataSet ExecuteDataset(SqlQuery q)
{
DataSet ds = new DataSet();
SqlCommand cmd = new SqlCommand();
PrepareCommand(cmd, q);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
SyncParameter(cmd, q);
cmd.Parameters.Clear();
return ds;
}
/// <summary>
/// ִ���������XmlReader
/// </summary>
/// <param name="q">SqlQuery����</param>
/// <param name="dp">Sql��������</param>
/// <returns>XmlReader</returns>
public static XmlReader ExecuteXmlReader(SqlQuery q, DatabaseProperty dp)
{
SqlDataAccess da = new SqlDataAccess(dp.ConnectionString);
da.Open();
return da.ExecuteXmlReader(q);
}
/// <summary>
/// ִ���������Xml�ĵ�
/// </summary>
/// <param name="q">SqlQuery����</param>
/// <param name="dp">Sql��������</param>
/// <returns>Xml�ĵ�</returns>
public static XmlDocument ExecuteXmlDoc(SqlQuery q, DatabaseProperty dp)
{
SqlDataAccess da = new SqlDataAccess(dp.ConnectionString);
da.Open();
XmlDocument doc = da.ExecuteXmlDoc(q);
da.Close();
return doc;
}
/// <summary>
/// ִ����������������е�Object
/// </summary>
/// <param name="q">SqlQuery����</param>
/// <param name="dp">Sql��������</param>
/// <returns>�������е�Object</returns>
public static Object ExecuteScalar(SqlQuery q, DatabaseProperty dp)
{
SqlDataAccess da = new SqlDataAccess(dp.ConnectionString);
da.Open();
object scalar = da.ExecuteScalar(q);
da.Close();
return scalar;
}
/// <summary>
/// ִ���������Ӱ������
/// </summary>
/// <param name="q">SqlQuery����</param>
/// <param name="dp">Sql��������</param>
/// <returns>Ӱ������</returns>
public static int ExecuteNonQuery(SqlQuery q, DatabaseProperty dp)
{
SqlDataAccess da = new SqlDataAccess(dp.ConnectionString);
da.Open();
int affectRows = da.ExecuteNonQuery(q);
da.Close();
return affectRows;
}
/// <summary>
/// ִ���������Dataset
/// </summary>
/// <param name="q">SqlQuery����</param>
/// <param name="dp">Sql��������</param>
/// <returns>Dataset</returns>
public static DataSet ExecuteDataset(SqlQuery q, DatabaseProperty dp)
{
SqlDataAccess da = new SqlDataAccess(dp.ConnectionString);
da.Open();
DataSet ds = da.ExecuteDataset(q);
da.Close();
return ds;
}
/// <summary>
/// �õ���¼������ͳ��
/// </summary>
/// <returns>RecordCount</returns>
private int GetRecordCount()
{
int posFrom = this.m_CommandText.IndexOf(" FROM ");
int posOrder = this.m_CommandText.IndexOf(" ORDER ");
SqlQuery q = new SqlQuery();
if (posOrder > 0)
q.CommandText = "SELECT COUNT(1) " + this.m_CommandText.Substring(posFrom, posOrder - posFrom).Trim();
else
q.CommandText = "SELECT COUNT(1) " + this.m_CommandText.Substring(posFrom);
q.Parameters = this.m_Parameters;
Object recordCount = m_DataAccess.ExecuteScalar(q);
return (int)recordCount;
}