Initiate the process: clarification needed

Hello gurus

1 clarification if the validation process writes the new data in redo files online when we question this statement where the data is read in

(1) from redolog files online?

(2) (or the data files? I doubt because data files will be updated only when there is point of control or stamps Sales reached full

Please provide details

S

Once the data are updated and committed, it can still be present in the cache of the buffers as buffers "Sales".  Oracle can write down to the data files on drive sooner or later.

Anyone questioning the data after that validation will probably recover in the buffers in memory.  If, however, the data has been written to disk and the buffer memory are no longer available, the application must make a reading of the disc (data files).

Hemant K Collette

Tags: Database

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