PL/SQL in a line chart

Question

Hello,
I am learning to use APEX to build charts on our intranet. I'm getting errors when I try the PL/SQL code below on a line chart (btw I'm a noob in PL).
The error description is after the code. Can someone please point out what's wrong with my code?
Any help will be very much appreciated. Thanks.
declare
q varchar2(4000);
g varchar2(4000);
w varchar2(4000);
c varchar2(4000);
qte varchar2(1) := CHR(39);
begin
q:=' select null link , month, ';
g:=' group by month ';
q:= q ||' to_char(decode((sum(nvl(i_worked,0)) + sum(nvl(o_worked,0))),0,0,null,0,(sum(nvl(i_cont,0)) + sum(nvl(o_cont,0))) *100/ (sum(nvl(i_worked,0)) + sum(nvl(o_worked,0)))),'||qte||'999.00'||qte||')||' || qte||'%'||qte || ' as Cont_Rt ';
q:= q ||' from axe_csa_daily_performance_mth ';
w := ' ';
if :P1_CENTER != 'All' then
if instr(w,'where')=0 then
     w:= ' where CENTER = :P1_CENTER ';
else w:=w||' and CENTER = :P1_CENTER ';
end if;
end if;
if :P1_UNIT != 'All' then
if instr(w,'where')=0 then
     w:= ' where ops_unit = :P1_UNIT ';
else w:=w||' and ops_unit = :P1_UNIT ';
end if;
end if;
if :P1_SUBUNIT!= 'All' then
if instr(w,'where')=0 then
     w:= ' where sub_unit = :P1_SUBUNIT ';
else w:=w||' and sub_unit = :P1_SUBUNIT ';
end if;
end if;
if :P1_TM!= 'All' then
if instr(w,'where')=0 then
     w:= ' where MGR_LNM'||','||'MGR_FNM = :P1_TM ';
else w:=w||' and MGR_LNM'||','||'MGR_FNM = :P1_TM ';
end if;
end if;
if :P1_TL!= 'All' then
if instr(w,'where')=0 then
     w:= ' where LDR_LNM'||','||'LDR_FNM = :P1_TM ';
else w:=w||' and LDR_LNM'||','||'LDR_FNM = :P1_TL ';
end if;
end if;
if :P1_FROM <= :P1_TO then
if instr(w,'where')=0 then
     w:= ' where month >= TO_DATE('||qte||:P1_FROM||qte||','||qte||'mm/dd/yyyy'||qte||') and month <= TO_DATE('||qte||:P1_TO||qte||','||qte||'mm/dd/yyyy'||qte||')' ;
else w:=w||' and month >= TO_DATE('||qte||:P1_FROM||qte||','||qte||'mm/dd/yyyy'||qte||') and month <= TO_DATE('||qte||:P1_TO||qte||','||qte||'mm/dd/yyyy'||qte||')' ;
end if;
end if;
q:= q || w || g;
return q;
end;
1 error has occurred
Invalid chart query: select null link , month, to_char(decode((sum(nvl(i_worked,0)) + sum(nvl(o_worked,0))),0,0,null,0,(sum(nvl(i_cont,0)) + sum(nvl(o_cont,0))) *100/ (sum(nvl(i_worked,0)) + sum(nvl(o_worked,0)))),'999.00')||'%' as Cont_Rt from axe_csa_daily_performance_mth group by month
Use the following syntax:
SELECT LINK, LABEL, VALUE
FROM ...
Or use the following syntax for a query returning multiple series:
SELECT LINK, LABEL, VALUE1 [, VALUE2 [, VALUE3...]]
FROM ...
LINK URL
LABEL Text that displays along a chart axis.
VALUE1, VALUE2, VALUE3... Numeric columns that define the data values.
Note: The series names for Column and Line charts are derived from the column aliases used in the query.

Answer 1

Hello,
Your code:
Invalid chart query: select null link , month, to_char(decode((sum(nvl(i_worked,0)) + sum(nvl(o_worked,0))),0,0,null,0,(sum(nvl(i_cont,0)) + sum(nvl(o_cont,0))) *100/ (sum(nvl(i_worked,0)) + sum(nvl(o_worked,0)))),'999.00')||'%' as Cont_Rt from axe_csa_daily_performance_mth group by monthtry:
select null link , month label, to_char(decode((sum(nvl(i_worked,0)) + sum(nvl(o_worked,0))),0,0,null,0,(sum(nvl(i_cont,0)) + sum(nvl(o_cont,0))) *100/ (sum(nvl(i_worked,0)) + sum(nvl(o_worked,0)))),999) value from axe_csa_daily_performance_mth group by monthI didn't check all the brackets, but by appending a percentage it isn't a value (numeric) anymore....
Greetings,
Roel
http://roelhartman.blogspot.com/
http://www.bloggingaboutoracle.org/
http://www.logica.com/