How to increase the per-process file descriptor limit for JDBC connection 15

If I need JDBC connection more that 15, the only solution is increase the per-process file descriptor limit. But how to increase this limit? modify the oracle server or JDBC software?
I'm using JDBC thin driver connect to Oracle 806 server.
From JDBC faq:
Is there any limit on number of connections for jdbc?
No. As such JDBC drivers doesn't have any scalability restrictions by themselves.
It may be it restricted by the no of 'processes' (in the init.ora file) on the server. However, now-a-days we do get questions that even when the no of processes is 30, we are not able to open more than 16 active JDBC-OCI connections when the JDK is running in the default (green) thread model. This is because the no. of per-process file descriptor limit exceeded. It is important to note that depending on whether you are using OCI or THIN, or Green Vs Native, a JDBC sql connection can consume any where from 1-4 file descriptors. The solution is to increase the per-process file descriptor limit.
null

maybe it is OS issue, but the suggestion solution is from Oracle document. However, it is not provide a clear enough solution, just state "The solution is to increase the per-process file descriptor limit"
Now I know the solution, but not know how to increase it.....
pls help.

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In this fld1 to fld135 are defined in internal table.
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Hi
You can try to use the type string:
form like zscr_data_hdr-form,
werks like zscr_data_hdr-werks,
matnr like zscr_data_hdr-matnr,
verid like zscr_data_hdr-verid,
lot like zscr_data_hdr-lot,
lot_qty like zscr_data_hdr-lot_qty,
udate like zscr_data_hdr-udate,
utime like zscr_data_hdr-utime,
zuser like zscr_data_hdr-zuser,
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defect like zscr_defect_data-defect,
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fieldxx type string,
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So you can save you informations of every fld<n> concatenating their values into fieldxx.
Max

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