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Explain The Difference Between Rac & Non Rac Environment In Oracle?

Answer»

In CASE of Non RAC environment a single instance accesses a single database. The database contains control files, redo log files & database files which is physically present on desk. WHEREAS, The RAC environment contains two or more INSTANCES COMMUNICATING with a single database ; these all are instances running on separate servers. 

In case of Non RAC environment a single instance accesses a single database. The database contains control files, redo log files & database files which is physically present on desk. Whereas, The RAC environment contains two or more instances communicating with a single database ; these all are instances running on separate servers. 


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