How to add a default value in a prompt list?

I have a prompt list that I'm getting from the database, I want to add a deafult value in the top of the list. Ei "ALL", my current list is:
"AMERICAS"
"EMEA"
"ASIA"
I want a list like:
"ALL"
"AMERICAS"
"EMEA"
"ASIA"
This is the code I have:
@Select(Country Region\Regionname)IN @Prompt('Enter the region','A',{'All'}distinct 'Country Region\Regionname',Multi,Constrained)
It is displaying only "All". Does someone know how to merge text with a database list in a promp variable?
Thank you!
Marcela

please find this post
i've solved this problem with someone before
Optional User prompt
ok, lets get back to our problem
since you are in sybase databases i dont know weather there is a DUAL table like oracle or not,
anyway forget about it and follow those steps
1. import the universe to the desginer
2. Right Click any empty space on the Stage to Create a derived table.
3. Give The derived table any Dummy Name lets say "ALL_table"
4. write a small SQL statment in the derived table "Enter SQL Expression"
select 'ALL' from anytable you have in the database.
lets say the countries table itself
SELECT 'ALL' FROM USER.COUNTRIES
validate the SQL and Click ok.
5.you will have a derived table called "ALL_table" with field name "ALL"
6.Drag the Field Name ALL to the Same Class whicn you "Country Name" in.
7.Get back to your "Country Name" Dimension and Double Click it to get its properties, then go to the Properties tab.
8.in the peroperties tab. "Associate List of Values" ,, Click "Edit" Button.
9.you will find your "Country Name" Dimension, click "Combine Queies" icon in the bar, to have another queries union with the first one.
10. you will have another query with "U" beside itm Drag the "ALL" dimension in it, and remove the "Country Name"
so you will have 2 union queries one with the "Country Name" and another on with "ALL"
gooooooood.
11.Click "Save and Close"
12.Check Export with universe and "Automatically Refresh before use"
13.now you can hide the "ALL" dimension we have created before, to make it invisible for the users. (do you have problem hiding this dimension?)
14.export your universe
15.open WebI
16.Create Report on this universe.
17.put the "Country Name" Dimension on the filter and make it prompt,
18.Run the query,
19. tell me what you see?
good luck
Amr

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