Left outer join does not work in IDT

Hi,

I have a universe from 5 DSOs in IDT.When i join these 5 DSOs with left outer join, it works like inner join.Always filtering the data, when i refresh report.I use the sql parameters as in the image;

Also here is the query that want to run;

SELECT

  Table__32."0TXTMD",

  Table__1."ZFREETXT1",

  Table__9."0TXTMD"

FROM

  "ZHRHAP07"."PUBLIC"."T0HAP_AR_EMP"  Table__9 LEFT OUTER JOIN "ZHRHAP07"."PUBLIC"."IZHRHAP07"  Table__2 ON (Table__9."0HAP_AR_EMP"=Table__2."0HAP_AR_EMP")

   LEFT OUTER JOIN "ZHRHAP07"."PUBLIC"."IZHRHAP07"  Table__1 ON (Table__1."0HAP_AR_ID"=Table__2."0HAP_AR_ID"  AND  Table__1."ZHRHEDEF"=Table__2."ZHRHEDEF")

   LEFT OUTER JOIN "ZHRHAP06"."PUBLIC"."IZHRHAP06"  Table__31 ON (Table__31."ZHRHEDEF"=Table__1."ZHRHEDEF" )

   LEFT OUTER JOIN "ZHRHAP06"."PUBLIC"."TZHRHEDEF6"  Table__32 ON (Table__32."ZHRHEDEF6"=Table__31."ZHRHEDEF6")

WHERE

  (

   Table__1."0CALYEAR"  IN  @dpvalue('A', DP0.DO3)

   AND

   Table__9."REFERENCE_DATE"  =  @Prompt(Key Date)

   AND

   Table__2."REFERENCE_DATE"  =  @Prompt(Key Date)

   AND

   Table__1."REFERENCE_DATE"  =  @Prompt(Key Date)

   AND

   Table__31."REFERENCE_DATE"  =  @Prompt(Key Date)

   AND

   Table__32."REFERENCE_DATE"  =  @Prompt(Key Date)

  )

I can see left outer join in the script of query.But its working like inner join.Please help me about this.

Regards,

Utku