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How to replace id-value with new fictive id in oracle

Posted on 2012-04-10
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Last Modified: 2012-04-15
Hi!

I have a table with, let´s say, 4 columns, person, colA, col B and colC.

The first column contains personal number (ssn) so when I export data to outside persons I dont want to send also the actual value in column.  Instead I want to replace, in this case "760320" with "1" and 760914 with "2".  Please note that 760320 and other personal numbers can occure 1, 2 or several times.


person      col A          col B            col C
760320      x          y                       z
760320      x          y                       z
760914      x          y                       u

The result should be

person  col A colB       col C
1             x      y           z
1             x      y           z
2             x      y            u


Thanks in advance
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Question by:marcgu
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Accepted Solution

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sdstuber earned 300 total points
ID: 37829712
select dense_rank() over(order by person) person, cola,colb,colc from yourtable
order by person
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Expert Comment

by:slightwv (䄆 Netminder)
ID: 37829717
>>when I export data to outside

Do you mean Oracle Export?

If you are running 11g and plan on using datapump, check out:  
Data Pump Data Remapping (Obfuscation)

http://www.toadworld.com/KNOWLEDGE/KnowledgeXpertforOracle/tabid/648/TopicID/DPUMP4/Default.aspx

If you mean some other type of expert, please clarify.
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Author Comment

by:marcgu
ID: 37829759
Hi!

Thanks for really fast possible solutions.

sdstuber: I will try your solution at work tomorrow.

slightwv: I wrote export, but the only import thing is really to get the result from the select-query in SQL developer . From there I can choose to copy the rows from the select or right click  to export. Sorry if this caused false focus.
/Marcus
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LVL 77

Expert Comment

by:slightwv (䄆 Netminder)
ID: 37829770
Are you only wanting a single table or will you be exporting additional related tables and need to keep the obfuscated values equal across the exports?
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Author Closing Comment

by:marcgu
ID: 37848223
Thanks for perfect solution.
/Marcus
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