Create a page process to hide a region - oracle-apex

I'm having some problems creating a process to hide a region in pl/sql.
Can anyone give a example of how to do it?
Tanks.

If appropriate, you can put the PL/SQL you need directly into the Condition, using the Condition Type "PL/SQL Function Body Returning a Boolean". For example (using your code from above, which doesn't seem quite right to me - all roads lead to hidden=3!):
DECLARE
a NUMBER;
b NUMBER;
hidden NUMBER;
BEGIN
select count(1) into a from TN_HISTORY_ITEMID where itemid in (select id from TN_TREE where pid = (select id from tn_tree where pid =:P1_ID));
select count(1) into b from surv_host_data where id_client = :P1_ID;
if b <> 0 AND a = 0 then hidden := 3;
elsif a = 0 then hidden := 3;
elsif b = 0 then hidden := 3;
else hidden := 3;
end If;
return (hidden = 3);
End;
If you need to do it with a process and a page item, then you need to make sure that the item is rendered before the region, and that the process runs before the region to be hidden is rendered. Otherwise by the time the item is set it will be too late.

Related

Oracle Update with the Case When Exists clause

I need a trigger to update a table DIRECTORY_NUMBER when one value of DN_NUM column matches with MSISDN column value of a different table (RNPH_REQUETS_DETAILS) under a different schema(NKADM). The trigger will run every time there's a new entry in the DIRECTORY_NUMBER table. Based upon several conditions, the values of the DN_STATUS column and a few other columns need to be updated. The updated value of the DN_STATUS column will be 'r' if the conditions are met, and 'w' if the conditions are not met. Active portion of my code is given below:
UPDATE d
SET d.DN_STATUS = CASE WHEN EXISTS (SELECT 1 from NKADM.RNPH_REQUESTS_DETAILS n where n.MSISDN = d.DN_NUM AND n.PROCESS_STATE_ID = 4 AND n.ACTION='IN' AND n.FAILED_STATUS IS NULL AND TRUNC(n.MODIFICATION_DATE) = TRUNC(SYSDATE))
THEN 'r'
ELSE 'w'
END,
d.DN_MODDATE = SYSDATE,
d.BUSINESS_UNIT_ID = 2,
d.HLCODE = 5
WHERE d.DN_ID =: NEW.DN_ID
AND d.PLCODE = 1004
AND d.DN_STATUS = 'f'
FROM DIRECTORY_NUMBER d;
I am getting the following error:
Error(48,1): PL/SQL: SQL Statement ignored
Error(60,3): PL/SQL: ORA-00933: SQL command not properly ended
The errors get resolved only if I remove the references. But that gives a different result than intended. When the code is as follows:
UPDATE DIRECTORY_NUMBER
SET DN_STATUS = CASE WHEN EXISTS (SELECT 1 from NKADM.RNPH_REQUESTS_DETAILS where MSISDN = DN_NUM AND PROCESS_STATE_ID = 4
AND ACTION='IN' AND FAILED_STATUS IS NULL AND TRUNC(MODIFICATION_DATE) = TRUNC(SYSDATE))
THEN 'r'
ELSE 'w'
END,
DN_MODDATE =SYSDATE,
BUSINESS_UNIT_ID=2,
HLCODE =5
WHERE DN_ID =:NEW.DN_ID
AND PLCODE =1004
AND DN_STATUS ='f';
COMMIT;
Even when the CASE WHEN EXISTS condition is true (returns result when run independently), the value of DN_STATUS gets updated to 'w'.
Update: I tried with the following code:
UPDATE DIRECTORY_NUMBER
SET DN_STATUS = 'r',
DN_MODDATE =SYSDATE,
BUSINESS_UNIT_ID=2,
HLCODE =5
WHERE DN_ID =:NEW.DN_ID
AND PLCODE =1004
AND DN_STATUS ='f';
AND DN_NUM in (select MSISDN from NKADM.RNPH_PROCESS_DETAILS where PROCESS_STATE_ID = 4);
This isn't working either. If I remove the last condition, the resultant row has DN_STATUS value of 'f', and the MSISDN is in NKADM.RNPH_PROCESS_DETAILS table with PROCESS_STATE_ID = 4. I don't understand why it's not working.
What am I doing wrong?
In BEFORE update/insert trigger for EACH ROW you can modify data of record which is currently processed. You don't need to call an extra UPDATE to change the data.
In other words you can do something like this
IF :NEW.PLCODE = 1004 AND :NEW.DN_STATUS = 'f' THEN
:NEW.DN_MODDATE := SYSDATE;
:NEW.BUSINESS_UNIT_ID := 2;
:NEW.HLCODE := 5;
-- this query you can wrap in a function and call this function
SELECT COUNT(1)
INTO lv_count
FROM NKADM.RNPH_REQUESTS_DETAILS n
WHERE n.MSISDN = :NEW.DN_NUM
AND n.PROCESS_STATE_ID = 4
AND n.ACTION = 'IN'
AND n.FAILED_STATUS IS NULL
AND TRUNC(n.MODIFICATION_DATE) = TRUNC(SYSDATE);
IF lv_count > 0 THEN
:NEW.DN_STATUS := 'r';
ELSE
:NEW.DN_STATUS := 'w';
END IF;
END IF;

Cursor declaration in Amazon Redshift

My aim is to parse the first table check if the ID exists in the second table, then do some updates.
The first table runs in loop and parses each row in the second table to update or give the output.
Here the code that I used:
DECLARE
CURSOR c1 FOR (SELECT pnr,agrnumber,pnrcreatedate FROM test2_view_table);
r1 c1%ROWTYPE;
CURSOR c2 FOR (SELECT pnr,ano,pcdt FROM sdh_ticket_test2_update);
r2 c2%ROWTYPE;
BEGIN
FOR r1 IN c1
LOOP
FOR r2 IN c2
LOOP
IF (r1.pnr = r2.pnr and r2.pnrcreatedate is null and
r1.agrnumber=r2.ano)
THEN
c++
else if (r1.pnr = r2.pnr and r2.agrnumber is null and
r1.pcdt=r2.pnrcreatedate)
THEN
a++ -- continue to the next iteration of the outer loop
-- as we have a match
GOTO continue;
END IF;
END LOOP;
-- we can only reach that point if there was no match
DBMS_OUTPUT.PUT_LINE(TO_CHAR(c));
<<continue>>
NULL;
END LOOP;
END;
For the declaration of cursor in redshift as above. its throwing me the following error.
[Amazon](500310) Invalid operation: syntax error at or near "c1"
Please let me know if there is any solution.
This kind of row-by-row processing is not suitable for any modern database. Just define the logic in a SQL query (or queries) and let the DB figure out how to do the actual work.
In this case you can do the entire comparison in one step. You could actually rewrite this as a single UPDATE.
BEGIN
UPDATE sdh_ticket_test2_update
SET pnrcreatedate = c1.pcdt
FROM test2_view_table c1
LEFT JOIN sdh_ticket_test2_update c2
ON c1.pnr = c2.pnr
AND c1.agrnumber = c2.ano
WHERE c2.pnrcreatedate IS NULL
;
UPDATE sdh_ticket_test2_update
SET ano = c1.agrnumber
FROM test2_view_table c1
LEFT JOIN sdh_ticket_test2_update c2
ON c1.pnr = c2.pnr
AND c1.pcdt = c2.pnrcreatedate
WHERE c2.agrnumber IS NULL
;
COMMIT

How to return multiple values through function

I have created the below function that will return workspace details which the loggedin user has access to.
But this function is returning only the first record from the select list.
I need all the records to be displayed as output.
Please modify it and let me know.
CREATE OR REPLACE FUNCTION "F_WORKSPACE_LOGIN_USERS" (
p_email VARCHAR2
) RETURN VARCHAR2 IS
l_error VARCHAR2(1000);
l_workspace VARCHAR2(1000);
l_teams VARCHAR2(1000);
l_team VARCHAR2(1000);
BEGIN
FOR i IN ( SELECT a.name workspace,
a.team_id id
FROM slackdatawarehouse.teams a,
( SELECT TRIM(workspaces) workspaces
FROM alluser_workspaces_fact
WHERE lower(email) = lower(p_email)
) b
WHERE a.team_id IN ( SELECT c.team_id
FROM slackdatawarehouse.team_tokens c
)
OR instr(', '
|| lower(b.workspaces),', '
|| lower(a.name) ) > 0
ORDER BY 1 ) LOOP
l_teams := l_team
|| ','
|| i.id;
l_teams := ltrim(rtrim(l_teams,','),',');
RETURN l_teams;
END LOOP;
END;
Current output is :
T6HPQ5LF7,T6XBXVAA1,T905JLZ62,T7CN08JPQ,T9MV4732M,T5PGS72NA,T5A4YHMUH,TAAFTFS0P,T69BE9T2A,T85D2D8MT,T858U7SF4,T9D16DF5X,T9DHDV61G,T9D17RDT3,T5Y03HDQ8,T5F5QPRK7
Required output is :
T6HPQ5LF7
T6XBXVAA1
T905JLZ62
i need output like above as one by one
I don't know what that code really does (can't test it), but this might be the culprit:
...
RETURN l_teams;
END LOOP;
As soon as code reaches the RETURN statement, it exits the loop and ... well, returns what's currently in L_TEAMS variable. Therefore, move RETURN out of the loop:
...
END LOOP;
RETURN l_teams;
If it still doesn't work as expected (which might be the case), have a look at pipelined functions (for example, on Oracle-base site) as they are designed to return values you seem to be looking for.
A simple example:
SQL> create or replace type t_dp_row as object
2 (deptno number,
3 dname varchar2(20));
4 /
Type created.
SQL> create or replace type t_dp_tab is table of t_dp_row;
2 /
Type created.
SQL> create or replace function f_depts
2 return t_dp_tab pipelined
3 is
4 begin
5 for cur_r in (select deptno, dname from dept)
6 loop
7 pipe row(t_dp_row(cur_r.deptno, cur_r.dname));
8 end loop;
9 return;
10 end;
11 /
Function created.
SQL> select * from table(f_depts);
DEPTNO DNAME
---------- --------------------
10 ACCOUNTING
20 RESEARCH
30 SALES
40 OPERATIONS
SQL>

Using RecordRef to Work with Multiple Tables

I have a group of tables that I need to the integer key from and I would like to be able to pass in any of them into a single and get the next value for the key.
I believe that RecordRef is the way to do this, but the code so far doesn't seem quite right.
I am trying to build a function that will take a table record and then return an integer value, that integer value will be the next record for the primary key. IE: if the last record's key is is 62825 the function will return 62826.
FunctionA
BEGIN
Id := GetNextId(SalesRecord); //Assignment not allowed
END;
FunctionB
BEGIN
Id := GetNextId(CreditMemoRecord); //Assignment not allowed
END;
GetNextId(pTableReference: RecordRef) rNextId : Integer
BEGIN
CASE pTableReference.NUMBER OF
DATABASE::SalesRecord: BEGIN
//Find last Record
pTableReference.FINDLAST;
lFieldRef := pTableReference.FIELD(1); //Set to the PK field
END;
DATABASE::CreditMemoRecord: BEGIN
//Find last Record
pTableReference.FINDLAST;
lFieldRef := pTableReference.FIELD(10); //Set to the PK field
END;
... //do more here
END; //CASE
EVALUATE(rNextId,FORMAT(lFieldRef.VALUE)); //Get the integer value from FieldRef
rNextId := rNextId + 1; //Add one for the next value
EXIT(rNextId); //return the value
END;
With this code I am getting the error "Assignment is not allowed for this variable." on the Function Call to GetNextId
Idea of the Table Structure:
Table - SalesRecord
FieldId, Fieldname, Type, Description
1 id integer PK
2 text1 text(30)
3 text2 text(30)
4 dec1 decimal
5 dec2 decmial
Table - CreditMemoRecord
FieldId, Fieldname, Type, Description
10 id integer PK
20 text1 text(30)
30 text2 text(30)
40 dec1 decmial
50 dec2 decmial
Just put function like this in both tables
GetNextId() rNextId : Integer
BEGIN
RESET;
FINDLAST;
EXIT(id+1);
END;
an then call it from record variable
FunctionA
BEGIN
Id := SalesRecord.GetNextId();
END;
FunctionB
BEGIN
Id := CreditMemoRecord.GetNextId();
END;
This is common practice I believe.
You mean "GetNextValue" get next record? I don't quite understand your use-case.
If you want to pass in a generic record, then you'll want to use the VARIANT data type. This is a wildcard type that will accept Records from any table, and allow you to return records from any table.
This is untested, but hopefully give you an idea of how they could work;
LOCAL NextRecord(VAR RecVariant : Variant)
IF RecVariant.ISRECORD THEN BEGIN
RecRef.GETTABLE(RecVariant);
// RecRef.NUMBER is useful for Database::"Customer" style comparisons
RecRef.NEXT;
RecRef.SETTABLE(RecVariant); // Might not be necessary
END;

Why does Relation.size sometimes return a Hash in Rails 4

I can run a query in two different ways to return a Relation.
When I interrogate the size of the Relation one query gives a Fixnum as expected the other gives a Hash which is a hash of each value in the Relations Group By statement with the number of occurrences of each.
In Rails 3 I assume it always returned a Fixnum as I never had a problem whereeas with Rails 4 it sometimes returns a Hash and a statement like Rel.size.zero? gives the error:
undefined method `zero?' for {}:Hash
Am I best just using the .blank? method to check for zero records to be sure of avoiding unexpected errors?
Here is a snippet of code with looging statements for the two queries and the resulting log
CODE:
assessment_responses1=AssessmentResponse.select("process").where("client_id=? and final = ?",self.id,false).group("process")
logger.info("-----------------------------------------------------------")
logger.info("assessment_responses1.class = #{assessment_responses1.class}")
logger.info("assessment_responses1.size.class = #{assessment_responses1.size.class}")
logger.info("assessment_responses1.size value = #{assessment_responses1.size}")
logger.info("............................................................")
assessment_responses2=AssessmentResponse.select("distinct process").where("client_id=? and final = ?",self.id,false)
logger.info("assessment_responses2.class = #{assessment_responses2.class}")
logger.info("assessment_responses2.size.class = #{assessment_responses2.size.class}")
logger.info("assessment_responses2.size values = #{assessment_responses2.size}")
logger.info("-----------------------------------------------------------")
LOG
-----------------------------------------------------------
assessment_responses1.class = ActiveRecord::Relation::ActiveRecord_Relation_AssessmentResponse
(0.5ms) SELECT COUNT(`assessment_responses`.`process`) AS count_process, process AS process FROM `assessment_responses` WHERE `assessment_responses`.`organisation_id` = 17 AND (client_id=43932 and final = 0) GROUP BY process
assessment_responses1.size.class = Hash
CACHE (0.0ms) SELECT COUNT(`assessment_responses`.`process`) AS count_process, process AS process FROM `assessment_responses` WHERE `assessment_responses`.`organisation_id` = 17 AND (client_id=43932 and final = 0) GROUP BY process
assessment_responses1.size value = {"6 Month Review(1)"=>3, "Assessment(1)"=>28, "Assessment(2)"=>28}
............................................................
assessment_responses2.class = ActiveRecord::Relation::ActiveRecord_Relation_AssessmentResponse
(0.5ms) SELECT COUNT(distinct process) FROM `assessment_responses` WHERE `assessment_responses`.`organisation_id` = 17 AND (client_id=43932 and final = 0)
assessment_responses2.size.class = Fixnum
CACHE (0.0ms) SELECT COUNT(distinct process) FROM `assessment_responses` WHERE `assessment_responses`.`organisation_id` = 17 AND (client_id=43932 and final = 0)
assessment_responses2.size values = 3
-----------------------------------------------------------
size on an ActiveRecord::Relation object translates to count, because the former tries to get the count of the Relation. But when you call count on a grouped Relation object, you receive a hash.
The keys of this hash are the grouped column's values; the values of this hash are the respective counts.
AssessmentResponse.group(:client_id).count # this will return a Hash
AssessmentResponse.group(:client_id).size # this will also return a Hash
This is true for the following methods: count, sum, average, maximum, and minimum.
If you want to check for rows being present or not, simply use exists? i.e. do the following:
AssessmentResponse.group(:client_id).exists?
Instead of this:
AssessmentResponse.group(:client_id).count.zero?