/// <summary>
/// 根据数据库类型获取操作类
/// </summary>
/// <param name="at">数据库类型</param>
/// <returns>DataBaseOper 数据操作类</returns>
public static SqlServerHelper GetDataBaseOper(eDBType at)
{
switch (at)
{
case eDBType.SqlServer :
if (dbOper_SqlServer == null)
{
return dbOper_SqlServer = new SqlServerHelper(at);
}
return dbOper_SqlServer;
break;
case eDBType.Custom:
break;
default :
break;
}
return null;
}
/// <summary>
/// 在自定义数据库连接中根据数据库类型获取数据库连接
/// </summary>
/// <param name="at">数据库的连接方式</param>
/// <param name="at2">自定义数据库的数据库类型</param>
/// <param name="ServerName">(net)服务器名称</param>
/// <param name="DataBaseName">数据库名称</param>
/// <param name="UserIdName">用户</param>
/// <param name="Password">密码</param>
/// <returns></returns>
public static SqlServerHelper GetDataBaseOper(eDBType at, eDBType at2, string ServerName, string DataBaseName, string UserIdName, string Password)
{
switch (at)
{
case eDBType.Access:
case eDBType.Oracle:
case eDBType.SqlServer:
break;
case eDBType.Custom:
if (dbOper_Custom != null)
{
dbOper_Custom.ConnClose(); //先关闭 再连接
}
dbOper_Custom = new SqlServerHelper(at2, ServerName, DataBaseName, UserIdName, Password);
return dbOper_Custom;
break;
default:
break;
}
return null;
}
/// <summary>
/// �������ݿ����ͻ�ȡ������
/// <example >����ʾ��
/// <code>
/// yltl.DBUtility.DataBaseOper.GetDataBaseOper(AccessConnectionType.Oralce)
/// </code>
/// ���أ�IDataBaseOper
/// </example>
/// �����ߣ�wls 20090902
/// </summary>
/// <param name="at">���ݿ�����</param>
/// <returns>DataBaseOper ���ݲ�����</returns>
public static IDataBaseOper GetDataBaseOper(eDBType dbtype)
{
switch (dbtype)
{
case eDBType.Access:
if (dbOper_Access == null)
{
dbOper_Access = new AccessHelper(dbtype);
}
return dbOper_Access;
break;
case eDBType.Sybase:
if (dbOper_Sybase == null)
{
dbOper_Sybase = new SybaseHelper(dbtype);
}
return dbOper_Sybase;
break;
case eDBType.Oracle:
if (dbOper == null)
{
dbOper = new OracleHelper(dbtype);
}
return dbOper;
break;
break;
case eDBType.SqlServer:
if (dbOper_SqlServer == null)
{
return dbOper_SqlServer = new SqlServerHelper(dbtype);
}
return dbOper_SqlServer;
break;
default: //Ĭ���DZ��ؿ�
throw new NotImplementedException("δʵ�ֵ����ݿ����Ͷ�ȡ:" + dbtype.ToString());
break;
}
return null;
}