Claims
- 1. A method of communicating data in a multi-tier database management system having a master database server, an application server, at least one workgroup server, and a plurality of workgroup user clients, said application server and said workgroup server interposed between said master database server and said workgroup user clients, said method comprising:examining transactions in a master database transaction log of the master database server, and replicating to the workgroup server those transactions intended for a user on the workgroup server or for any workgroup clients attached to the workgroup server; and examining transactions in a workgroup database transaction log of the workgroup server, skipping those transactions originating at the master database server, and copying data files corresponding to transactions originating at the workgroup server or at a workgroup user client of the workgroup server to an inbox of the master database server.
- 2. The method of claim 1, further comprising:applying, at the workgroup server, each of the transactions routed from the master database server to the workgroup server.
- 3. The method of claim 1, further comprising:examining, at the workgroup server, transactions in the workgroup server database transaction log, and replicating a transaction to a workgroup client if the transaction is intended for a user on the workgroup client.
- 4. A method of communicating data in a multi-tier database management system having a master database server, an application server, at least one workgroup server, and a plurality of workgroup user clients, said application server and said workgroup server interposed between said master database server and said workgroup user clients, said method comprising:examining transactions in a master database transaction log of the master database server, and replicating to the workgroup server those transactions intended for a user on the workgroup server or for any workgroup clients attached to the workgroup server.
- 5. The method of claim 4, further comprising:applying, at the workgroup server, each of the transactions routed from the master database server to the workgroup server.
- 6. The method of claim 4, further comprising:examining, at the workgroup server, transactions in the workgroup server database transaction log, and replicating a transaction to a workgroup client if the transaction is intended for a user on the workgroup client.
Parent Case Info
This application is a continuation application of application Ser. No. 09/373,128, filed Aug. 12, 1999 now U.S. Pat. No. 6,266,669, which is a continuation of PCT/US98/03752 filed Feb. 24, 1998, itself claiming the benefit of the filing date of US provisional application No. 60/039,230 filed Feb. 27, 1997, each above identified application being incorporated in its entirety, into the present application, by reference.
US Referenced Citations (20)
Provisional Applications (1)
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Number |
Date |
Country |
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60/039230 |
Feb 1997 |
US |
Continuations (2)
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Number |
Date |
Country |
Parent |
09/373128 |
Aug 1999 |
US |
Child |
09/899565 |
|
US |
Parent |
PCT/US98/03752 |
Feb 1998 |
US |
Child |
09/373128 |
|
US |