endence;\r(2) can adapt to the different needs of data users;\r(3) a certain data security function.\rThe physical design of the database the main goal is to adjust\rthe physical structure and data access path choice\rIn order to improve the speed of database access, the effective\ruse of storage space. RDBMS left to the user to participate in\rphysical design\rThe contents are the index design, integrated design and\rcluster partition design.\rThe contents of database management:\r(1) the establishment of the database;\r(2) the adjustment of database;.\r(3) database reorganization;\r(4) the safety and integrity of the database control;\r(5) the failure to restore the database;\r(6) monitoring database.
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