PROBLEM WITH PRPS,PROJ,ANEK TABLES

Hai All,

Iam developing a PS report with the tables prps,proj,anek,iam facing a probelm in the select query

My code

  SELECT a~pspnr b~posid  b~psphi b~poski c~anln1  c~zuonr c~vorgn INTO CORRESPONDING FIELDS OF TABLE it_final FROM  proj AS a

                                                      INNER JOIN prps AS b ON a~pspnr = b~psphi

                                                      INNER JOIN anek AS c ON b~poski = c~zuonr

         WHERE a~pspnr IN s_pspnr AND b~posid IN s_posid AND c~vorgn = 'AUUZ' .

In the selection screen i have given 2005-0001 to 2005-0020 for s_pspnr,but it is selecting the other records which are not between the  s_pspnr.

Regards,

Siva jyothi