How to find memory taken by a process using top command

I wanted to know how to find the memory taken by a process using top command. The output of the top command is as follows as an example:
Mem: 13333364k total, 13238904k used, 94460k free, 623640k buffers
Swap: 25165816k total, 112k used, 25165704k free, 4572904k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
16514 applmgr 25 0 2197m 1.7g 10m S 0.3 13.0 15:20.67 java
30692 crestelo 22 0 2901m 1.4g 9284 S 0.0 11.0 3:03.68 java
30431 crestelo 25 0 2043m 1.4g 161m S 50.9 11.0 79:02.73 java
30869 crestelo 25 0 2860m 1.2g 9292 S 0.0 9.6 7:11.18 java
16655 applmgr 23 0 1934m 1.1g 10m S 0.3 8.9 2:17.49 java
16319 crestelo 19 0 1541m 299m 44m S 0.0 2.3 2:52.11 java
I hope, my question is clear as to how to find the memory taken by a process using top command.
Please revert with the reply to my query.
Regards

Have you tried "man top" to see the documentation for the top command?
How about the following: http://lmgtfy.com/?q=show+memory+with+top+command
The 5th column (VIRT) shows the amount of RAM + swap
The 6th column (RES) shows RAM
The 7th column (SHR) shows memory shared between processes

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I hope, my question is clear as to how to find the memory taken by a process using top command.
Please revert with the reply to my query.
Regards

a short and correct answer would be: you can't.
As oracle uses a fair amount of shared memory, and that shared memory is attached to most of the oracle processes, the same memory appears a number of times.
you should rephrase your question / what is it you want to achieve?
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