Dynamic actions on button and dynamic column name

Question

Hi!ynam
I want to create a dynamic action on button click in my tabular form.
I have a select list with values of my column names (P7_X_COLUMN) and a text field where users input values for update (P7_X_UVALUE).
My idea is that when they click the button, they update selected column to desired value in all rows.
However, I get the following error:
ORA-06550: line 5, column 5: PL/SQL: ORA-01747: invalid user.table.column, table.column, or column specification ORA-06550: line 4, column 1: PL/SQL: SQL Statement ignored (Go to error)
It seems to me that I have not referenced the column name correctly, I thought it was the same as referencing values. How do I do that?
This is my code:
begin
update "#OWNER#"."IZV_SLOG_DET"
set :P7_X_COLUMN=:P7_X_UVALUE;
end;
Regards,
Ivan

Answer 1

I got it to work, but the query is too big. Can anyone help me with how to get it to work?
I tried breaking it into more varchar2 strings, but i always get the same error:
Error processing row.
ORA-01461: can bind a LONG value only for insert into a LONG column
declare  
l_table_name varchar2(30) := 'IZV_SLOG_DET_POM'; 
l_sql_stmt varchar2(32762);
begin
l_sql_stmt := 'update ' || l_table_name || ' set ' || :P7_X_COLUMN || ' =''' || :P7_X_UVALUE|| '''' ||
'where'||
'nvl(MSR_PRD_ID,1) = nvl(nvl(''' || :P7_X_MSR_PRD_ID || '''' || ',MSR_PRD_ID),1) and' ||
'nvl(SRC_STM_ID,1) = nvl(nvl(''' || :P7_X_SRC_STM_ID || '''' || ',SRC_STM_ID),1) and' ||
'nvl(OZNAKA_KOMITENTA,1) = nvl(nvl(''' || :P7_X_OZNAKA_KOMITENTA || '''' || ',OZNAKA_KOMITENTA),1) and' ||
'nvl(RSP,1) = nvl(nvl(''' || :P7_X_RSP || '''' || ',RSP),1) and' ||
'nvl(OZNAKA_RETKA,1) = nvl(nvl(''' || :P7_X_OZNAKA_RETKA || '''' || ',OZNAKA_RETKA),1) and' ||
'nvl(OZNAKA_IZVJESCA,1) = nvl(nvl(''' || :P7_X_OZNAKA_IZVJESCA || '''' || ',OZNAKA_IZVJESCA),1) and' ||
'nvl(MBR_KOMITENTA,1) = nvl(nvl(''' || :P7_X_MBR_KOMITENTA || '''' || ',MBR_KOMITENTA),1) and' ||
'nvl(KOMITENT_NEREZ,1) = nvl(nvl(''' || :P7_X_KOMITENT_NEREZ || '''' || ',KOMITENT_NEREZ),1) and' ||
'nvl(ZUPANIJA,1) = nvl(nvl(''' || :P7_X_ZUPANIJA || '''' || ',ZUPANIJA),1) and' ||
'nvl(DRZAVA,1) = nvl(nvl(''' || :P7_X_DRZAVA || '''' || ',DRZAVA),1) and' ||
'nvl(SEKTOR_NEREZIDENTA,1) = nvl(nvl(''' || :P7_X_SEKTOR_NEREZIDENTA || '''' || ',SEKTOR_NEREZIDENTA),1) and' ||
'nvl(VRSTA_POVEZANOSTI,1) = nvl(nvl(''' || :P7_X_VRSTA_POVEZANOSTI || '''' || ',VRSTA_POVEZANOSTI),1) and' ||
'nvl(INSTRUMENT,1) = nvl(nvl(''' || :P7_X_INSTRUMENT || '''' || ',INSTRUMENT),1) and' ||
'nvl(VALUTA,1) = nvl(nvl(''' || :P7_X_VALUTA || '''' || ',VALUTA),1) and' ||
'nvl(OTKAZNI_ROK,1) = nvl(nvl(''' || :P7_X_OTKAZNI_ROK || '''' || ',OTKAZNI_ROK),1) and' ||
'nvl(IZVORNO_DOSPIJECE,1) = nvl(nvl(''' || :P7_X_IZVORNO_DOSPIJECE || '''' || ',IZVORNO_DOSPIJECE),1) and' ||
'nvl(VRSTA_INDEKSACIJE,1) = nvl(nvl(''' || :P7_X_VRSTA_INDEKSACIJE || '''' || ',VRSTA_INDEKSACIJE),1) and' ||
'nvl(VALUTA_INDEKSACIJE,1) = nvl(nvl(''' || :P7_X_VALUTA_INDEKSACIJE || '''' || ',VALUTA_INDEKSACIJE),1) and' ||
'nvl(PORTFELJ,1) = nvl(nvl(''' || :P7_X_PORTFELJ || '''' || ',PORTFELJ),1) and' ||
'nvl(UTRZIVOST_KREDITA,1) = nvl(nvl(''' || :P7_X_UTRZIVOST_KREDITA || '''' || ',UTRZIVOST_KREDITA),1) and' ||
'nvl(ZNACAJKE_KAPITALA,1) = nvl(nvl(''' || :P7_X_ZNACAJKE_KAPITALA || '''' || ',ZNACAJKE_KAPITALA),1) and' ||
'nvl(RIZICNA_SKUPINA,1) = nvl(nvl(''' || :P7_X_RIZICNA_SKUPINA || '''' || ',RIZICNA_SKUPINA),1) and' ||
'nvl(UGRADJENI_DERIVAT,1) = nvl(nvl(''' || :P7_X_UGRADJENI_DERIVAT || '''' || ',UGRADJENI_DERIVAT),1) and' ||
'nvl(ODNOSNA_VARIJABLA,1) = nvl(nvl(''' || :P7_X_ODNOSNA_VARIJABLA || '''' || ',ODNOSNA_VARIJABLA),1) and' ||
'nvl(PREDZNAK,1) = nvl(nvl(''' || :P7_X_PREDZNAK || '''' || ',PREDZNAK),1) and' ||
'nvl(VRSTA_IZNOSA,1) = nvl(nvl(''' || :P7_X_VRSTA_IZNOSA || '''' || ',VRSTA_IZNOSA),1) and' ||
'nvl(KOMITENT_PBR,1) = nvl(nvl(''' || :P7_X_KOMITENT_PBR || '''' || ',KOMITENT_PBR),1) and' ||
'nvl(UDJELI_POVEZ_C,1) = nvl(nvl(''' || :P7_X_UDJELI_POVEZ_C || '''' || ',UDJELI_POVEZ_C),1) and' ||
'nvl(AR_ID,1) = nvl(nvl(''' || :P7_X_AR_ID || '''' || ',AR_ID),1) and' ||
'nvl(AU_ID,1) = nvl(nvl(''' || :P7_X_AU_ID || '''' || ',AU_ID),1) and' ||
'nvl(AR_BUSS_ID,1) = nvl(nvl(''' || :P7_X_AR_BUSS_ID || '''' || ',AR_BUSS_ID),1) and' ||
'nvl(MTI_CCY_TP_ID,1) = nvl(nvl(''' || :P7_X_MTI_CCY_TP_ID || '''' || ',MTI_CCY_TP_ID),1) and' ||
'nvl(REG_NO,1) = nvl(nvl(''' || :P7_X_REG_NO || '''' || ',REG_NO),1) and' ||
'nvl(REG_SFX,1) = nvl(nvl(''' || :P7_X_REG_SFX || '''' || ',REG_SFX),1) and' ||
'nvl(JMBG_ID_NO,1) = nvl(nvl(''' || :P7_X_JMBG_ID_NO || '''' || ',JMBG_ID_NO),1) and' ||
'nvl(IP_ID,1) = nvl(nvl(''' || :P7_X_IP_ID || '''' || ',IP_ID),1) and' ||
'nvl(TAX_ID_NO,1) = nvl(nvl(''' || :P7_X_TAX_ID_NO || '''' || ',TAX_ID_NO),1) and' ||
'nvl(INSTRUMENT_OLD,1) = nvl(nvl(''' || :P7_X_INSTRUMENT_OLD || '''' || ',INSTRUMENT_OLD),1) and' ||
'nvl(PREDZNAK_OLD,1) = nvl(nvl(''' || :P7_X_PREDZNAK_OLD || '''' || ',PREDZNAK_OLD),1) and' ||
'nvl(NAPOMENA,1) = nvl(nvl(''' || :P7_X_NAPOMENA || '''' || ',NAPOMENA),1) and' ||
'nvl(NOVI_POSAO_F,1) = nvl(nvl(''' || :P7_X_NOVI_POSAO_F || '''' || ',NOVI_POSAO_F),1) and' ||
'nvl(LISTA_SUMARNA,1) = nvl(nvl(''' || :P7_X_LISTA_SUMARNA || '''' || ',LISTA_SUMARNA),1) and' ||
'nvl(LISTA_REKAP,1) = nvl(nvl(''' || :P7_X_LISTA_REKAP || '''' || ',LISTA_REKAP),1) and' ||
'nvl(DZS_IDY_CL_ID,1) = nvl(nvl(''' || :P7_X_DZS_IDY_CL_ID || '''' || ',DZS_IDY_CL_ID),1) and' ||
'nvl(HNB_IP_CL_ID,1) = nvl(nvl(''' || :P7_X_HNB_IP_CL_ID || '''' || ',HNB_IP_CL_ID),1) and' ||
'nvl(NO_DYS_OO,1) = nvl(nvl(''' || :P7_X_NO_DYS_OO || '''' || ',NO_DYS_OO),1) and' ||
'nvl(POSTOTAK1,1) = nvl(nvl(''' || :P7_X_POSTOTAK1 || '''' || ',POSTOTAK1),1) and' ||
'nvl(POSTOTAK2,1) = nvl(nvl(''' || :P7_X_POSTOTAK2 || '''' || ',POSTOTAK2),1) and' ||
'nvl(POSTOTAK3,1) = nvl(nvl(''' || :P7_X_POSTOTAK3 || '''' || ',POSTOTAK3),1) and' ||
'nvl(BNK_ID,1) = nvl(nvl(''' || :P7_X_BNK_ID || '''' || ',BNK_ID),1) and'||
'nvl(ID,1) = nvl(nvl(''' || :P7_X_ID || '''' || ',ID),1) and' ||
'nvl(ID_RETKA,1) = nvl(nvl(''' || :P7_X_ID_RETKA || '''' || ',ID_RETKA),1) and' ||
'nvl(DATUM_STANJA,1) = nvl(nvl(''' || :P7_X_DATUM_STANJA || '''' || ',DATUM_STANJA),1) and' ||
'nvl(IZNOS,1) = nvl(nvl(''' || :P7_X_IZNOS || '''' || ',IZNOS),1) and' ||
'nvl(IZNOS_ACTUAL,1) = nvl(nvl(''' || :P7_X_IZNOS_ACTUAL || '''' || ',IZNOS_ACTUAL),1) and' ||
'nvl(ACT_AR_BAL_KN,1) = nvl(nvl(''' || :P7_X_ACT_AR_BAL_KN || '''' || ',ACT_AR_BAL_KN),1) and' ||
'nvl(ACT_AR_BAL,1) = nvl(nvl(''' || :P7_X_ACT_AR_BAL|| '''' || ',ACT_AR_BAL),1) and' ||
'nvl(IZNOS_ACTUAL_OLD,1) = nvl(nvl(''' || :P7_X_IZNOS_ACTUAL_OLD || '''' || ',IZNOS_ACTUAL_OLD),1) and' ||
'nvl(ACT_AR_BAL_KN_OLD,1) = nvl(nvl(''' || :P7_X_ACT_AR_BAL_KN_OLD || '''' || ',ACT_AR_BAL_KN_OLD),1) and' ||
'nvl(ACT_AR_BAL_OLD,1) = nvl(nvl(''' || :P7_X_ACT_AR_BAL_OLD || '''' || ',ACT_AR_BAL_OLD),1) and' ||
'nvl(EXG_RT_CRD_RSK_F,1) = nvl(nvl(''' || :P7_X_EXG_RT_CRD_RSK_F || '''' || ',EXG_RT_CRD_RSK_F),1) ';
execute immediate l_sql_stmt; 
end;