DATA LINK LAYER FOR DATABASES

• US 20100274757A1
• Filed: 06/16/2008
• Published: 10/28/2010
• Est. Priority Date: 11/16/2007
• Status: Abandoned Application

• Current Assignee: Deutsche Telekom AG
• Original Assignee: Deutsche Telekom AG
• Inventors: Deutzmann, Stefan
• Application Number:
  US12/682,652
• Publication Number:
  US 20100274757A1
• Time in Patent Office: Days
• US Class Current: 707/610
• CPC Class Codes: G06F 16/252 between a Database Management System and a front-end application

Abstract

Method for effecting access to databases and/or data arrays and/or applications (C) in a data processing installation and/or in a network of data processing installations, wherein the databases and/or data arrays and/or applications (C) have an explicit address associated with them, particularly an IP address, a server name, a path name and/or a file name or the like, wherein each database and/or each data array and/or each application (C) has an alias uniquely associated with it and at least one association entity (B) is provided in which the association between alias and address is stored and can be retrieved therefrom, and wherein a connection entity (V) is provided which, in the event of attempted access to databases and/or data arrays and/or applications (C), uses the alias to retrieve the address from the association entity (B) and then uses the address obtained from the association entity to access the databases and/or data arrays and/or applications (C).

Claims

1. A method of executing access to databases or data arrays or applications in a data-processing system or in a network of data-processing systems, whereby the databases or data arrays or applications have an explicitly associated address, in particular an IP address, a server name, a path name or a file name or the like, wherein each database or each data array or each application has an explicitly associated alias and at least one association instance is provided, in which the association of alias to address is stored and can be polled by such, and that a data-link instance is provided that, on an attempted access to the databases or data arrays or applications, polls the address from the association instance by using the alias and then, by using the address obtained by using the association instance, accesses the databases or data arrays or applications.

2. The method according to claim 1, wherein the association instance is a centrally stored instance, in particular in the form of a database.

3. The method according to claim 1, wherein the association instance is formed by synchronized copying on a majority of data-processing systems.

4. The method according to claim 1 wherein each accessing application as well as each application to be accessed has a respective alias that is associated with it.

5. The method according to claim 1 wherein individual data fields or data field contents are indexed in a database.

6. The method according to claim 1 wherein each application first retrieves its own alias on starting by polling the association instance.

7. The method according to claim 1 wherein the data contents of a database are returned to the requesting application via the data-link instance.

8. The method according to claim 1 wherein the data-link instance is provided with a data-processing instance that is capable of processing the data received prior to a transfer to the calling application.

9. The method according to claim 1 wherein the data-link instance is provided with a data buffer that is suited to store the data received at least temporarily.

10. A data-processing system with an application for executing a method according to claim 1.