Plan hash value is 0 in trace file

Question

Hi,
One of the developers has a weird problem while coding in java. His query returns no rows when run from the application. But if he runs the same query from sqlplus, it is ok. I traced his session and that's what I got:
{code}
PARSING IN CURSOR #8 len=279 dep=0 uid=1896 oct=3 lid=1896 tim=1385424021598785 hv=3759151842 ad='2dcbe1148' sqlid='3pcuxk7h106r2'
select NAME1, NAME2, ADDRESS1, ADDRESS2, ADDRESS3, ADDRESS4, CITY, STATE, POSTAL, COUNTRY_DESC, SINCE_DT, EFFDT, EFF_STATUS, CUST_ID, ADDRESS_SEQ_NUM, CNTCT_SEQ_NUM, COUNTRY_HOME, HOME_COUNTRY_FLG, VAT_RGSTRN_ID from PS_MKD_CUST_ASX_VW where CUST_ID = :1 and ADDRESS_SEQ_NUM = :2
END OF STMT
PARSE #8:c=5999,e=74768,p=0,cr=4,cu=1,mis=0,r=0,dep=0,og=1,plh=0,tim=1385424021598784
WAIT #8: nam='SQL*Net message to dblink' ela= 1 driver id=675562835 #bytes=1 p3=0 obj#=-1 tim=1385424021598911
WAIT #8: nam='SQL*Net message from dblink' ela= 835 driver id=675562835 #bytes=1 p3=0 obj#=-1 tim=1385424021599782
EXEC #8:c=999,e=1015,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=0,tim=1385424021599859
WAIT #8: nam='SQL*Net message to client' ela= 1 driver id=1952673792 #bytes=1 p3=0 obj#=-1 tim=1385424021599914
WAIT #8: nam='SQL*Net message from client' ela= 782 driver id=1952673792 #bytes=1 p3=0 obj#=-1 tim=1385424021600715
WAIT #8: nam='SQL*Net message to client' ela= 1 driver id=1952673792 #bytes=1 p3=0 obj#=-1 tim=1385424021600773
WAIT #8: nam='SQL*Net message from client' ela= 1058 driver id=1952673792 #bytes=1 p3=0 obj#=-1 tim=1385424021601870
WAIT #8: nam='SQL*Net message to dblink' ela= 1 driver id=675562835 #bytes=1 p3=0 obj#=-1 tim=1385424021602027
WAIT #8: nam='SQL*Net message from dblink' ela= 665 driver id=675562835 #bytes=1 p3=0 obj#=-1 tim=1385424021602705
FETCH #8:c=0,e=841,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=0,tim=1385424021602774{/code}
Notice two things:
1. I traced with bind variables, but their values are not shown
2. The plan hash (plh) in all three phases are zero
Can someone shed a light on this? What am I missing?
P.S. how do you change the style to code?!

Answer 1

It's slightly different here. First I know they are not using NVARCHAR and second, it's not the value that's missing. the whole bind variable section is missing. For example this is the dump from another query just before the one above: As you can see the binds are present and happily showing their values:
PARSING IN CURSOR #3 len=322 dep=0 uid=1896 oct=3 lid=1896 tim=1385421145197998 hv=3861486324 ad='2d8f7d298' sqlid='bas3ndmm2m6rn'
select u.MD_USER_ID, FIRST_NAME, LAST_NAME, LOGON_ID from MD_USER u, MD_USER_ROLE ur,ROLE_TYPE rt where rt.ROLE_TYPE_GROUP_CODE IN ('ES','EPA') and rt.ROLE_TYPE_ID = ur.ROLE_TYPE_ID and ur.MD_USER_ID = u.MD_USER_ID and ur.SUBS_PS_CUST_ID = :1 and ur.SUBS_PS_ADDRESS_SEQ_NO = :2 order by UPPER(LAST_NAME), UPPER(FIRST_NAME)
END OF STMT
BINDS #3:
Bind#0
  oacdty=01 mxl=4000(4000) mxlc=00 mal=00 scl=00 pre=00
  oacflg=01 fl2=1000000 frm=01 csi=46 siz=4000 off=0
  kxsbbbfp=2b9abfd9ba00  bln=4000  avl=06  flg=05
  value="222672"
Bind#1
  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00
  oacflg=01 fl2=1000000 frm=01 csi=46 siz=24 off=0
  kxsbbbfp=2b9abfd9cda0  bln=22  avl=02  flg=05
  value=1
EXEC #3:c=3000,e=5158,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=4056985626,tim=1385421145203129
WAIT #3: nam='SQL*Net message to client' ela= 2 driver id=1952673792 #bytes=1 p3=0 obj#=-1 tim=1385421145203353
FETCH #3:c=0,e=205,p=0,cr=40,cu=0,mis=0,r=10,dep=0,og=1,plh=4056985626,tim=1385421145203393