Re: SQL question

"Malik, Fawzia" wrote:
>
> Hi,
>
> Can you tell me if its possible to write some sql to change some data.
> Basically I need to run a scritp to change data of column: id from 12345678
> to the last four digits. Is this possible to do in sql/plsql??
>
> Any advice/hints would be greatly appreciated
>
> Rgds
>
> Fawzia
>

I assume that id is a number.

1. If it happens to be a PK, drop all the FK constraints refering it, and the PK itself.
2. Update T set id = to_number(substr(to_char(number), length(to_char(number)) - 4))

    should do the trick (give or take a parenthese).

-- 
Regards,

Stephane Faroult
Oriole Corporation
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Author: Stephane Faroult
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