How to create an ADF table which has a command button column?

Hi
Thank you for reading my post
how i can create a tabl that one of its column is a command button.
when i press the command button it will , for example delete that row or do some action.
indeed i want to know
-how to have a command button column
-how to find the rowID or some row identifier that help me locate that row in the database.
thanks

<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by Rainer Wagner ([email protected]):
Imagine a table T_Q with columns C_1, C_2, C_3 and UN_123.
C_1, C_2 and C_3 are all numeric and given by the user.
UN_123 has to be a calculated sequence number starting by 1 and incremented by 1 for each combination of C_1, C_2 and C_3, i.e., the sequence number depends on the key values C_1, C_2 and C_3.
Could anybody provide a code sample on how to create a BEFORE INSERT trigger , which calculates the value of the column UN_123 based on the values of C_1, C_2 and C_3 ??
Premise: Rather than using any sequence, the trigger code should only be based on the table T_Q<HR></BLOCKQUOTE>
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