Interactive 'WITH' Statement

Sample code not working and I don't see why.  Any suggestions?

Token ( was not valid. Valid tokens: FOR WITH FETCH ORDER UNION EXCE 
 WITH MYTABLE AS (SELECT DDCREW, DDDRV#,                              
   DATE(DDYEAR || DDMOTH || DDDAY) As strdate, ddmd from cdsddm)      
 select * from MYTABLE                                                
   where dddrv#=2523                                                  
    and strdate = 20090316

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