A comparison of global, local, and anonymous replica visibility

A comparison of global, local, and anonymous replica visibility

There are three types of replica visibility that are available in Microsoft Access: global, local, and anonymous.

This topic provides reference information about:

Replica use

Disconnected environment on the Internet

Custom application on the Internet

Replica creation

Use as a Design Master

Database replica visibility in Access 95 and 97

Conflict resolution

Synchronization

Scheduling

Briefcase support

Replica use

  • Global
Serves as a hub in a replica set
  • Local
Control topology
  • Anonymous
Control topology/Internet

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Disconnected environment on the Internet

  • Global
Yes
  • Local
Yes
  • Anonymous
Yes. Anonymous replicas are recommended for Internet applications if you need a large number of replicas.

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Custom applications on the Internet

  • Global
Yes
  • Local
Yes
  • Anonymous
Yes. Use the Internet as a distribution mechanism for a large number of replicas.

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Replica creation

  • Global
Yes. Create a global, local, or anonymous replica.
  • Local
Yes. Create new local replicas.
  • Anonymous
Yes. Create new anonymous replicas.

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Use as a Design Master

  • Global
Supported. When a database is replicated, the first replica that is created (the Design Master) is a global replica.
  • Local
Not supported
  • Anonymous
Not supported

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Database replica visibility in Access 95 and 97

  • Global
Default
  • Local
Not applicable
  • Anonymous
Not applicable

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Conflict resolution

  • Global
Conflict resolution can be managed at any global replica.
  • Local
All conflicts are recorded and resolved at the hub (global) replica.
  • Anonymous
All conflicts are recorded and resolved at the hub (global) replica.

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Synchronization

  • Global
Synchronize with any global replica in the replica set, or any local or anonymous replica that the set created.
  • Local
Synchronizes only with its hub (global) replica.
  • Anonymous
Synchronizes only with its hub (global) replica.

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Scheduling

  • Global
Replication Manager can schedule synchronization with any global or local (child) replica. Synchronization cannot be scheduled to anonymous replicas.
  • Local
Hub replicas can schedule an exchange to a local replica. And local replicas can schedule synchronization with their hub (global) replica.
  • Anonymous
Anonymous replicas can schedule synchronization with their hub (global) replica.

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Briefcase support

  • Global
Yes
  • Local
No
  • Anonymous
No

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