About ora-01006 :bind variable does not exist

Question

Hi all of you,i have this dynamic sql :
DECLARE
v_query clob;
cpt number;
begin
v_query:='
SELECT
count(TBA.ANT_ID)
  FROM
WHERE TBA.ANT_FUT_ID = TFT.FUT_ID
       AND TBA.ANT_KATEGORIE_CODE_ID = TAKCL.ANT_KATEGORIE_CODE_ID(+)
       AND TBA.ANT_KFZ_REIHEN_ID = TKR.KFZ_REIHEN_ID(+)
       AND TBA.ANT_ID = F1.ANT_ANT_ID(+)
       AND TBA.ANT_ID = F2.ANT_ANT_ID(+)
       AND TBA.ANT_ID = F3.ANT_ANT_ID(+)
       AND TBA.ANT_ID = ERS.ers_bdk(+)
       AND TBA.ANT_ID = F1_2.ANT_ANT_ID(+)
       AND TBA.ANT_ID = F2_3.ANT_ANT_ID(+)
       AND TBA.ANT_ID = MFU.MFU_ANT_ID(+)
       AND MFU.MFU_NIETGEOMETRIE_ID = NG.NG_ID(+)
       AND MFU.MFU_MATRIZEN_BEICHNUNG_ID = MZB.MZB_ID(+)
    -- Suchkriterien: --
    --Ersteller
    AND  DECODE( ERS.ers_id, NULL, ''%'', ERS.ers_name ) LIKE DECODE('':1'',NULL,''%'','''')||''''|| :1 ||''''||DECODE('':1'',NULL,''%'','''')
     --Fahrzeug
    AND  DECODE( TKR.NAME, NULL, ''%'', TKR.NAME ) LIKE DECODE('':2'',NULL,''%'','''')||''''|| :2 ||''''|| DECODE('':2'',NULL,''%'','''')
     --BDK
    AND  DECODE( fuege_db.bdk_nummer( TBA.ANT_ID,''.'' ), NULL, ''%%'',
   fuege_db.bdk_nummer( TBA.ANT_ID,''.'' ) )   LIKE ''%''||:3||''%''
    --Technologie
    AND  TBA.ANT_FUT_ID LIKE DECODE('':4'',NULL,''%'','''')||''''|| :4 ||''''||DECODE('':4'',NULL,''%'','''')
     --Art
    AND ((TBA.ANT_WFP_ID is null and 1=DECODE('':5'',NULL,1,1,1) ) or (TBA.ANT_WFP_ID is not null and 2=DECODE('':5'',NULL,2,2,2)))
    --VTA
    AND TBA.ANT_VTA = decode('':6'',1,1,TBA.ANT_VTA)  ';
execute immediate v_query
into cpt USING
'Dominik Hussmann',
'AU736_Q7_SUV' ,
'WPS Stahl',
'0';  
end ;
In the execution,i have this error :ora-01006 :bind variable does not exist, after analyzing,i have found that the problem is with parameters :5 and :6 ,i don't understand they have the same syntax
as bind variables 1,2,3 and 4.
Than you for any suggestion.

Answer 1

I hope you do realise that there are 13 bind-variables in your sql, not 6?
Variables are bound by position. You cannot use the same bind variable twice, they will be 2 distinct bind variables.
For example, you use :1 three times, so you need to provide three arguments, in this case three times the same value.