I am using Oracle APEX to build a interactive report. There is a field in my database called method which should contain either A or B. In the edit page, I want to show a list containing A and B so that users can choose from those two.
I set the type of the item to SelectList and since I need to add the other value to the list, in the List of Values area, I set the type to PL/SQL Function Body returning SQL Query and the code is as follows:
Begin
select TEST_METHOD into method from table_test
where ROWID = :P2_ROWID;
IF ('Live' = method) THEN
return select 'Screenshots' from dual;
END IF;
return select 'Live' from dual;
End;
However, I got the following error:
ORA-06550: line 5, column 10: PLS-00103: Encountered the symbol "SELECT" when expecting one of the following: ( - + ; case mod new not null continue avg count current exists max min prior sql stddev sum variance execute forall merge time timestamp interval date pipe
I am new to plsql and APEX, I know the code looks wired but I don't know what's wrong. I am also wondering if there is any other way to achieve my goal? Thanks!
Related
I want the following trigger to be run correctly but it rise an error which is: bad bind variable 'P23_ID'.
The trigger query is:
Create or replace trigger "newTRG"
Before
Insert on "my_table"
For each row
Begin
If :new."ID" is null then
Insert into my_table (ID) values (:P23_ID);
end if;
End;
Use the v() syntax:
create or replace trigger "newTRG" before
insert on "my_table"
for each row
begin
if :new."ID" is null then
insert into my_table ( id ) values (v('P23_ID'));
end if;
end;
On a side note, if this is a primary key value it is a lot easier to use identity columns (the new way) or a sequence (the old way) to populate your column. Doing this from a page item is error prone.
Is it possible to add dynamic pivot columns in the APEX interactive grid query?
PL/SQL function body returning SQL query:
DECLARE
l_piv_col VARCHAR2(1000) := NVL(:P1_DEP_PIVOT,'10 DEP1');
l_statement VARCHAR2(4000):=
q'~
select rownum row_num,JOB,MGR,DEP1,DEP2,DEP3
from
(select JOB,
MGR,
SAL,
DEPTNO
from EMP
)
src
--PIVOT (sum(sal) for deptno IN (10 DEP1,20 DEP2,null DEP3)) Piv
PIVOT (sum(sal) for deptno IN (##PIV_COL##)) Piv
~';
BEGIN
RETURN REPLACE(l_statement,'##PIV_COL##',l_piv_col);
--RETURN l_statement;
END;
P1_DEP_PIVOT -> (10 DEP1, 20 DEP2, null DEP3)
In the pivot deptno in, I need to use the dynamic columns.
sum(sal) for deptno IN (##PIV_COL##)
I am not sure, how to add the dynamic pivot columns in APEX Interactive grid?
Any help is greatly appreciated.
Thanks
Thanks for the reproducible case.
Classic Report is the only APEX Component which supports the query returning a changing set of result columns. Interactive Reports and Interactive Grid do not support this.
In classic report, pick the region source as PL/SQL function body returning SQL query and enable the Generic Columns switch. Then configure the maximum amount of columns, and you're good to go.
There are a couple of workarounds that I can think of if you really need an interactive grid (IG).
Store the results of the query in a collection, create an IG on top of the collection and have a server side condition to hide the columns that should not be displayed
Make sure your query always returns a fixed number of columns and have page item (to manage hide/show) for each of the columns. If a column should not be in the pivot, hide it based on the page item.
I have an interactive grid which has a dynamic action to fetch returns from another table
begin
for c in (select
REW_SIZE,
IN_STOCK,
DESCRIPTION,
FINANCIAL_YEAR_ID
into
:REW_SIZE,
:IN_STOCK,
:DESCRIPTION,
:FINANCIAL_YEAR_ID
from
T_SORDER_PROFOMA_REWINDING
where so_id = :so_id)
loop
:REW_SIZE := c.REW_SIZE;
:IN_STOCK :=c.IN_STOCK;
:DESCRIPTION:=c.DESCRIPTION;
:FINANCIAL_YEAR_ID:=c.FINANCIAL_YEAR_ID;
end loop;
end;
When I had simple select into query, it gave "exact fetch returns more than requested number of rows" thn I applied the above code but it returns only 2nd row. I have 2 rows in the table for this ID.
For what I understand, you want to get some extra data columns. Your best shot is to create a view to join these table and deliver the columns you need. If you need editing, you will have to create an instead of trigger on the view as well, to do a correct dml on one or both tables.
create view which joins both tables
create instead of trigger (if you need editing)
query of the Interactive Grid should be on the view
This solution adds the extra data columns to the source of the IG, which is better and easier in my opinion.
IR based on PL/SQL Function Body returning SQL Query.
How do i can create Interactive reports based on multiple table and Deferent column name.
Exp :-
Select list item return three value
1 or 2 or 3
And the function return query basen on select list value
when Value equal 1
Select name, satate, country_id from cities
when value equal 2 Return
Select country, id from country
when value equal 3 Return
Select ocean,oc_id,from oceans
The three query return different column name and value.
Ok firstly, your question is poorly written. But from what I gather, you want an SQL query that returns different things based on an input.
I dont think you even need a plsql function body for this.
Simply do something like this:
SELECT * FROM
(SELECT name as name,
state as state,
country_id as id,
1 as value
FROM cities
UNION ALL
SELECT country as name,
NULL as state,
id as id,
2 as value
FROM country
UNION ALL
SELECT ocean as name,
NULL as state,
oc_id as id,
3 as value
FROM oceans)
WHERE value = :input_parameter_value;
Because if you are trying to display a variable number of columns and constantly changing their names and such. You are gonna have a bad time, it can be done, as can everything. But afaik its not exactly simple
No objections to what #TineO has said in their answer, I'd probably do it that way.
Though, yet another option: if your Apex version allows it, you can create three Interactive Report regions on the same page, each selecting values from its own table, keeping its own column labels.
Then create a server condition for each region; its type would be Function that returns a Boolean and look like
return :P1_LIST_ITEM = 1;
for the 1st region; = 2 for the 2nd and = 3 for the 3rd.
When you run the page, nothing would be displayed as P1_LIST_ITEM has no value. Once you set it, one of conditions would be met and appropriate region would be displayed.
I have a form in my Oracle APEX based application, I want to have validation on submit button, so that the combination of two specific entries, if they already are present in the SQL table/View, I want to show an alert, like "The entry for this combination of values of A and B already exists, please enter correct values."
If those two specific entries are represented by two form items (e.g. :P1_ONE and :P2_TWO), then the validation procedure might be a function that returns error text, such as
declare
l_cnt number;
retval varchar2(200);
begin
select count(*)
into l_cnt
from your_table t
where t.column_one = :P1_ONE
and t.column_two = :P1_TWO;
if l_cnt > 0 then
retval := 'The entry for this combination already exists';
end if;
end;
The query itself might need to be modified, depending on what exactly you meant by describing the problem; that's the way I understood it.
Then you should have a unique constraint on the table, and let that validate incoming data.
Any violation of this constraint will have exception raised, which can be transformed within the APEX error handling procedure.