My program uses Perl DBI to connect to Oracle database, I have an strange issue as explained below-

I have a select query in my program, which uses to compare data between two dates (start date and end date)and selects it, 

( WHERE REC_STATUS = 'A' and UCSIIU_RECEIPT_AT_MOT_DT between to_date(
+? ,'mm/dd/yyyy') and to_date(?,'MM/DD/YYYY ) )     
OR (UCSIIU_RECEIPT_AT_MOT_DT between to_date(?,'mm/dd/yyyy') and to_da
+te(?,'MM/DD/YYYY) AND REC_STATUS = 'I'))

[download]

I found that when I pass these four parameters as variable (using bind_param function), the perl script is taking four to five hours to execute the query ($sth->execute) in the perl script, however when I hard code these parameters (dates) in the select query this query is executed within ten minutes of time.

In brief when I hard code the date parameters inside query the perl script takes 10 to 15 min to execute, but if I pass date parameters as variables this script is talking more than five hours to execute, it hangs in a single ,step $sth->execute for a very long tome.

I am unable to get the cause of this problem; your suggestion to this problem is heartily welcome.

Thanks in advance,
Ram

20060925 Janitored by Corion: Added formatting, code tags, as per Writeup Formatting Tips

2006-09-25 Retitled by GrandFather, as per Monastery guidelines
Original title: 'Hi Monks,'

In reply to Excessive execution time passing parameters to Oracle by Anonymous Monk

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