Pl/sql - returning sql query

Question

hello everyone...hope someone can help.
Worked a lot to solve this, but I can't find a solution.
DECLARE
     lv_sql VARCHAR(32767);
     lv_pivot_cols VARCHAR2(1000);
BEGIN
     FOR i IN (SELECT DISTINCT comp_name, pro_name FROM  cat_attributes order by comp_name)
     LOOP
          lv_pivot_cols := lv_pivot_cols ||'('||''''||i.comp_name||''''||','|| '''' || i.pro_name ||''''||')'||',';
     END LOOP;
     lv_pivot_cols := RTRIM(lv_pivot_cols,',');
     lv_sql := 'SELECT * FROM
     (SELECT position,cat_id, att_name as ATTRIBUTE, pro_name, value,comp_name
     FROM   cat_attributes )
PIVOT (
                    max (value)
                    FOR (comp_name,pro_name) IN (' ||lv_pivot_cols||')) where cat_id=:P1100_CHOOSE_CATEGORY order by position';
     RETURN lv_sql;                    
     --DBMS_OUTPUT.PUT_LINE(lv_sql);
END;the above code works well, but i want to add a where-condition in the distinct statement, which depends on an apex item.
like:
SELECT DISTINCT comp_name, pro_name FROM  cat_attributes where  cat_id=:P1100_CHOOSE_CATEGORY order by comp_name But if a add this condition a got
report error: ORA-01403: no data found
any suggestions????
also want to edit the column header max character size. now, there can be only *30* characters for column-header. is there a possibilty to raise this?
Thanks for all your suggestions

Answer 1

I get data In sql commands. If I run the statement in sql-commands window, a pop-up opens, where I have to enter any disired value of the item.
It's the item in where condition of the distinct statement
So I get all wisched values.
But in region source, it doesn't work.
I can't get data with an apex item.
works not:
DECLARE
     lv_sql VARCHAR(32767);
     lv_pivot_cols VARCHAR2(1000);
BEGIN
     FOR i IN (SELECT DISTINCT comp_name, pro_name FROM  cat_attributes where cat_id=:P1100_CHOOSE_CATEGORY order by comp_name)
     LOOP
          lv_pivot_cols := lv_pivot_cols ||'('||''''||i.comp_name||''''||','|| '''' || i.pro_name ||''''||')'||',';
     END LOOP;
     lv_pivot_cols := RTRIM(lv_pivot_cols,',');
     lv_sql := 'SELECT * FROM
     (SELECT position,cat_id, att_name as ATTRIBUTE, pro_name, value,comp_name
     FROM   cat_attributes )
PIVOT (
                    max (value)
                    FOR (comp_name,pro_name) IN (' ||lv_pivot_cols||')) where cat_id =:P1100_CHOOSE_CATEGORY order by position';
     RETURN lv_sql;                    
     --DBMS_OUTPUT.PUT_LINE(lv_sql);
END;works:
DECLARE
     lv_sql VARCHAR(32767);
     lv_pivot_cols VARCHAR2(1000);
BEGIN
     FOR i IN (SELECT DISTINCT comp_name, pro_name FROM  cat_attributes where cat_id=1 order by comp_name)
     LOOP
          lv_pivot_cols := lv_pivot_cols ||'('||''''||i.comp_name||''''||','|| '''' || i.pro_name ||''''||')'||',';
     END LOOP;
     lv_pivot_cols := RTRIM(lv_pivot_cols,',');
     lv_sql := 'SELECT * FROM
     (SELECT position,cat_id, att_name as ATTRIBUTE, pro_name, value,comp_name
     FROM   cat_attributes )
PIVOT (
                    max (value)
                    FOR (comp_name,pro_name) IN (' ||lv_pivot_cols||')) where cat_id =:P1100_CHOOSE_CATEGORY order by position';
     RETURN lv_sql;                    
     --DBMS_OUTPUT.PUT_LINE(lv_sql);
END;It isn't possible to reference the where-clause on apex-item
Edited by: Locke90210 on 30.04.2013 05:12