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Identify two situations in which the alert log file is updated.（）
A:Running a query on a table returns ORA-600: Internal Error.
B:Inserting a value into a table returns ORA-01722: invalid number.
C:Creating a table returns ORA-00955: name us already in used by an existing objects.
D:Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.
E:Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block corrupted (file # 14, block # 50) error.

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出自：Oracle认证

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