Performance Poor for defineColumnType

Hi,
Does anyone know why the performance is so poor for defineColumnType?
I noticed the CPU performance go way up (up to 35% utilization).
I am using it in a OraclePrepareStatement and calling the defineColumnType every time I use the PreparedStatement. Should it only be called once but the statement used many times?
Thanks.

Anthony,
For what it's worth, I also noticed that using the "defineColumnType()" method actually degraded the performance (contrary to what is mentioned in Oracle's "JDBC Developer's Guide and Reference").
But then again, like you say, perhaps I was using it incorrectly?
Good Luck,
Avi.

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Nametab (NTAB)                                                                                0
   Table definition     99,60     6.798                                                   20.000                                            29.532    153.221
   Field definition     99,82      31.562        784                 2,61           20.000      6.222          31,11          17.246     41.248
   Short NTAB           99,94     3.625      2.446                81,53          5.000        2.801          56,02             0            2.254
   Initial records      73,95        6.625        998                 16,63          5.000        690             13,80             40.069     49.528
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boldprogram                97,66     300.000     1.074                 0,38           75.000     67.177        89,57           219.665    725.703bold
CUA                    99,75         3.000        875                   36,29          1.500      1.401          93,40            55.277      2.497
Screen                 99,80         4.297      1.365                 33,35          2.000      1.811          90,55              119         3.214
Calendar              100,00       488            361                  75,52            200         42              21,00               0            158
OTR                   100,00         4.096      3.313                  100,00        2.000      2.000          100,00              0
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Tables                                                                                0
   Generic Key          99,17    29.297      1.450                  5,23           5.000        350             7,00             2.219      3.085.633
   Single record        99,43    10.000      1.907                  19,41           500         344            68,80              39          467.978
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Page area              1,08              2.832                24.144               65.536    196.608              Statement     79,00
Extended memory     22,90       958.464           1.929.216          4.186.112          0                                         0,00
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Hi Friends
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SUBRC = SUBRC_RTA
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APLTAB =
awart_sel_p = awart_s[]
awart_sel_a = awart_s[]
abstp_sel = abstp_s[]
i0000 = p0000
i0001 = p0001
i0002 = p0002
i0007 = p0007
i2001 = p2001
i2002 = p2002
i2003 = p2003.
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or 'DE42'
or 'DE44'
or 'CN61'
or 'US62'
or 'SG70'
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Edited by: kishan P on Sep 17, 2010 4:50 PM

Hi Peter,
I would suggest few changes in your code. Please refer below procedure to optimize the code.
Steps:
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           Please run extended program check or code inspector to remove any errors and warnings.
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          Please clear the work areas after every append statment.
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Have a nice day
Thanks

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