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Harper Jimenez——Studied at the University of Zurich, Lives in Zurich, Switzerland.
the system change number (SCN) is Oracle's clock - every time we commit, the clock increments. The SCN just marks a consistent point in time in the database. A checkpoint is the act of writing dirty (modified blocks from the buffer cache to disk. The database ALWAYS has transactions going on, ALWAYS.read more >>+119962023-05-09 12:11:15
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