How To Create Random Text By Query Analyzer

use AFM
IF EXISTS (SELECT * FROM sysobjects WHERE type = 'U' AND name='uye_idler')
 drop table uye_idler
CREATE TABLE uye_idler
(
uye_no int NOT NULL,
)
GO
DECLARE @uye_numarası int
Set @uye_numarası = 1
WHILE @uye_numarası < 15001
    BEGIN
        INSERT INTO uye_idler VALUES (@uye_numarası)
           Set @uye_numarası = @uye_numarası + 1
    End

Hi , I am able to create 15000 records by the codes above .By the same way I want to create random texts as ASD ,WER,SAD,DFG etc.
 How can I do this ? Thanks ...