How to cancel a search in SQL*Plus

Once a search is initiated in SQL*Plus Worksheet, how can you stop it? I am on Windows NT. The normal Ctrl-C, Ctrl-Break, Esc don't work. I found an obscure reference in the SQL*Plus documentation about a cancel function, but it didn't give the keystrokes.

I actually managed to crash an 8.0.5 database by hitting Ctrl-C in the middle of a query.
Oracle Support advised me that this was a known bug. The solution?
Don't hit Ctrl-C in the middle of a query!
null

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BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
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NLS_TERRITORY                  AMERICA
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NLS_ISO_CURRENCY               AMERICA
NLS_NUMERIC_CHARACTERS         .,
NLS_CALENDAR                   GREGORIAN
NLS_DATE_FORMAT                DD-MON-RR
NLS_DATE_LANGUAGE              AMERICAN
NLS_SORT                       BINARY
NLS_TIME_FORMAT                HH.MI.SSXFF AM
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NLS_TIMESTAMP_TZ_FORMAT        DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY              $
NLS_COMP                       BINARY
NLS_LENGTH_SEMANTICS           BYTE
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NLS_TERRITORY                  AMERICA
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>
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>
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user8848256 wrote:
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table ==> function
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http://www.williamrobertson.net/code/xplan.sql

How to cancel a search in SQL*Plus

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