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All full table scans by queries read the entire table,including any deleted extents,ultimately leading to poor performance.
Q19: Leaving a column value set to NULL
Q21: When viewing constraints from ALL_CONSTRAINTS,foreign key constraints
Q24: A database in _ mode automatically archives
Q27: In an index-organized table every row is
Q32: The _({value},{replace})function replaces NULL values in expressions,avoiding
Q36: Oracle 10g has a feature called _,allowing
Q59: LONG and _ are deprecated.
Q65: System privileges are more pinpointed than object
Q83: What is an associative array?
Q98: To prevent row migration,you can adjust two