Trying to find a specific SQL statement to determine its cost

If an sql statement is executed will it ALWAYS show up in the awrrpt report? (10g)
I am a developer DBA and was handed an SQL statement by the production DBA as being a problem during a specific timeframe within the past hour.
That statement does not show up in v$LongOps (although other older ones are) nor does it appear in v$sqltext and is not in the awrrpt even when I run the report for the entire day.
Any other ideas or can I safely broach the Production DBA without looking like an idiot?!!
Thanks

I am not using awrrpt report but for sure if your statement has been executed it must have been in v$sqltext but maybe it did not stay very long because it has been rarely executed and replaced in the shared pool by other SQL statements that have been more executed.
You could setup a copy of your production database on a similar host and run the statement several time in single user mode to check at least its performance in single user with sql_trace=TRUE and tkprof.
If your statement is SELECT your could also execute it in your production database and check at the sametime v$sqltext and also v$sqlarea, especially for:
DISK_READS      NUMBER      Sum of the number of disk reads over all child cursors
BUFFER_GETS      NUMBER      Sum of buffer gets over all child cursors
USER_IO_WAIT_TIME      NUMBER      User I/O Wait Time (in microseconds)
CPU_TIME      NUMBER      CPU time (in microseconds) used by this cursor for parsing, executing, and fetching
ELAPSED_TIME      NUMBER      Elapsed time (in microseconds) used by this cursor for parsing, executing, and fetching

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user11181920 wrote:
Is it possible to find out which sql statement is generating how much redo in bytes during a specific time?It will not help you.
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>
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>
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>
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Trying to find a specific SQL statement to determine its cost

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