A、 The Error class is a Runtime Exception.
B、 No exceptions are subclasses of Error.
C、 Any statement that may throw an Error must be enclosed in a try block.
D、 any statement that may throw an Exception must be enclosed in a try block.
E、 Any statement that may throw an Runtime Exception must be enclosed in a try block.
更多“Which the statement is true？（）”相关的问题
A、 DBA_PENDING_TRANSACTIONS B、 DBA_AUDIT_STATEMENT C、 V$FLASHBACK_DATABASE_STATS D、 FLASHBACK_TRANSACTION_QUERY
A、 V$DATABASE B、 V$FLASHBACK_DATABASE_STAT C、 V$FLASHBACK_DATABASE_LOG D、 V$RECOVERY_FILE_DEST
A、A. Query the V$FLASHBACK_DATABASE_LOG view. B、B. Query the V$FLASHBACK_DATABASE_STAT view. C、C. Check the value of the DB_FLASHBACK_RETENTION_TARGET initialization parameter. D、D. Query the V$RECOVERY_FILE_DEST view.
A、A. Statistics collection is not done for the CUSTOMERS table when schema stats are gathered. B、B. Statistics collection is not done for the CUSTOMERS table when database stats are gathered. C、C. Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time. D、D. Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics. E、E. Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.
A、DBMS_STATS B、DBMS_ALERT C、DBMS_SPACE D、DBMS_MONITOR E、DBMS_SERVER_ALERT F、DBMS_SPACE_ADMIN
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