When Is It Useful To Have Replication Or Fragmentation Of Data?

1.	When Is It Useful To Have Replication Or Fragmentation Of Data?
Answer» REPLICATION is USEFUL when there are MANY read-only transactions at different SITES wanting access to the same data. They can all execute QUICKLY in parallel, accessing local data. But updates become difficult with replication. Fragmentation is useful if transactions on different sites tend to access different parts of the database. Replication is useful when there are many read-only transactions at different sites wanting access to the same data. They can all execute quickly in parallel, accessing local data. But updates become difficult with replication. Fragmentation is useful if transactions on different sites tend to access different parts of the database.

Answer»

REPLICATION is USEFUL when there are MANY read-only transactions at different SITES wanting access to the same data. They can all execute QUICKLY in parallel, accessing local data. But updates become difficult with replication. Fragmentation is useful if transactions on different sites tend to access different parts of the database.

Replication is useful when there are many read-only transactions at different sites wanting access to the same data. They can all execute quickly in parallel, accessing local data. But updates become difficult with replication. Fragmentation is useful if transactions on different sites tend to access different parts of the database.

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