Answer / rahul khanke

hi,
basic oracle architecture is devided in 3 stages
1. storage structure
1. physical storage
a. data file
b. control file etc..
2.logical storage
a. tablespace
b. extents etc..
2. memory structure
a. SGA
b. PGA
2. process structure
1. mandatory process
a. SMON
b. PMON etc
2. optional process

and much more

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