Auto Incrementing a field in a database table

Hello All,
I have created a database table for generating a unique ID, based on two key fields; Product and Area.
For a particular Product and Area,the ID generated should be unique, and it will be the third field of my table.
Is there any possible way by which i can generate the ID automatically,based on the Product And Area entered? The ID should also be automatically incremented based on the next entry.
Can anyone help me in resolving this problem?
Also, if i am deleting a particular Product and Area, will it be possible to remove the ID generated by it?
Thanks In Advance.
Shino.

Hi,
If you are using a generated maintenance screen and populating the data manually your approach will need to be different.
It could be possible to use a user exit in the generated screen to populate your ID field, but you will face the risk that the user will be able to presumably over-type the ID or enter their own value.
Consider your overall requirement and design, it may be that a generated maintenance sceen is not the most suitable way to build this functionality.
Regards,
Nick

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CREATE SEQUENCE dhsinfo_page_content_seq
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Cemil,
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        <LENGTH/>
        <TYPE/>
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      <item>
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        <OFFSET/>
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        <TYPE/>
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        <LENGTH/>
        <TYPE/>
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      <item>
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        <LENGTH/>
        <TYPE/>
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        <OFFSET/>
        <LENGTH/>
        <TYPE/>
        <FIELDTEXT/>
      </item>
    </FIELDS>
Then link the Transaction.FIELDS to SAP_JCo_Interface_0.Request{/RFC_READ_TABLE/TABLES/FIELDS}. You may run into problems with two other fields and optionally they can be removed (set link type to remove xml). I usually remove them initially for testing. The two fields are:
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<?xml version="1.0" encoding="utf-8"?>
<RFC_READ_TABLE>
<INPUT>
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    <NO_DATA />
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    <ROWCOUNT>20</ROWCOUNT>
    <ROWSKIPS>0</ROWSKIPS>
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<TABLES>
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        <WA>000000000000000023ROH 00000000</WA>
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      <item>
        <WA>000000000000000038HALB 00000000</WA>
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      <item>
        <WA>000000000000000043HAWA 00000000</WA>
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        <WA>000000000000000058HIBE 00000000</WA>
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        <WA>000000000000000098HALB 00000000</WA>
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      <item>
        <WA>000000000000000178NLAG 00000000</WA>
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        <WA>000000000000000188NLAG 00000000</WA>
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      <item>
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SAP_JCo_Interface_0.Response{/RFC_READ_TABLE/TABLES/DATA/item}
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Regards,
Mike
Edited by: Michael Appleby on Jan 12, 2009 5:16 PM

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in addition to abv details..chk this:
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Moderator message - Asking for points is against the Forum's RoE
Message was edited by: Suhas Saha

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Hello,
I would like to have a number field to be auto increment. Ho can I do that in Oracle must I use some code for it or can I make the field auto increment by itself.
Thanks

user3311314 wrote:
Hello,
I would like to have a number field to be auto increment. Ho can I do that in Oracle must I use some code for it or can I make the field auto increment by itself.
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Auto Incrementing a field in a database table

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