Toad help

I need to know if any of you has a function, procedure or process to measure the time a query (any query) takes to run.
 
I have two complicated queries and both pretty much do the same thing. I need to know wich one runs faster.
i think TOAD has some kind of functionality to do that, even in GUI
Any ideas?

mehakAsked:
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dconlonCommented:

Under View/Options/SQL Editor in TOAD, there's a checkbox about Always showing statement execution time. Doing a 'run current statement' will then display execution time in ms in the very bottom left-hand corner. Also on the same screen, if you check the first tickbox (Process statements in threads), TOAD will pop up a separate window for each update statement you do, and the time taken in ms will be at the bottom of this window (remember to take into account Oracle's caching of statements though - as far as I know you can make Oracle think it's a new statement even just by changing capitalisation).

For even more info in TOAD, go to the Tuning/SGA Trace menu option. Pick a statement type and schema name from the drop-down boxes and hit the refresh button. On the lower pane, go to Execution Stats, which doesn't tell you the time but does tell you everything else.

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grim_toasterCommented:
In sql*plus, to turn timing on issue the command:
set timing on
and then every query run will give an elapsed time.

In addition to this I would recommend looking into the execution plan of the queries (using explain plain and/or tkprof)

And for quick reference: in sql plus, using the command:
set autotrace on
will give further details of statistics and the execution plan (but I think you need to have created the plan_table first, which is under <ORA_HOME>/rdbms/admin/utlxplan.sql)
seazodiacCommented:
Add another method: dbms_utility.get_time
I think it's very handy and very good benchmarking tool, esp when you comparing the running time of function, procedures

an example of using this:

declare
l_start number;
begin
     l_start :=dbms_utility.get_time;
     --call you procedure here
     test_proc;
     dbms_output.put_line('it takes about ' || round(dbms_utility.get_time - l_start)/100, 2) || ' seconds ...');
end;
/
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