Re: hiding column values for specific rows

am  Mon, dem 13.11.2006, um 14:11:50 +0100 mailte Luca Ferrari folgendes:
> Hi,
> I don't know if this's possible but I'd like to hide column values for 
> specific rows within a query. Imagine I've got a table with columns username 
> and password: users(username,password). Now I'd like the user registered in 
> the table to see her password, to see who is registered but not to see the 
> other people passwords. For example, if the table contains:
> username  | password
> --------------+-------------
> luca            | myPaswd
> roberto       | otherPaswd
> gianna        | thirdPaswd
> 
> I'd like to do a query like: "SELECT * FROM users where username=luca" 
> obtaining something like:
> username  | password
> --------------+-------------
> luca            | myPaswd
> roberto       | xxxxx
> gianna        | XXXXX
> 
> Is it possible to specify in the above query that all password columns that do 

You can do this with a VIEW and remoke all from normal users for the
original table. Within the VIEW, you can use current_user for the
username and/or a case when ... statement for the password-column.


Andreas
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Andreas Kretschmer
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