I am unable to retrieve any data from my cfquery. Same query when i run in sql developer i get the result.
Any reason why ?
Hi all, thanks for the responses. Sorry, it was my fault.
It was a data issue. I was retrieving uncommited data from CF.
You can also build the query in CFEclipse, test it and then paste the query in your CFQuery tag.
Also check how you have put the query name in the CFoutput tag, so many times I've put #queryname# instead of queryname in cfoutput.
Is the query actually being ran?
If you can turn debugging on, does the query show as being executed?
Also when you run the same query do you mean you copy/paste the query from the debugger into sql developer?
Perhaps the same values are not being included (if you are using variables in there)
Related
We have a situation where we are dealing with a relational source(Oracle). The system is developed in a way where we have to first execute a package which will enable data read from Oracle and user will be able to get results out of select statement. I am trying to find a way on how to implement this in informatica mapping.
What we tried
1. In PreSQL we tried to execute the package and in SQL query we wrote select statement - data not getting loaded in target.
2. In PreSQL we wrote a block in which we are executing the package and just after that(within same beging...end block) we wrote insert statement on top of select statement - This is inserting data through insert statement however I am not in favor of this solution as both source and target are dummy which will confuse people in future.
Is there any possibility to implement this solution somehow by using 1st option.
Please help and suggest.
Thanks
The stored procedure transformation is there for this purpose configure it to execute source pre load
Pre-Sql and data read are not a part of same session. From what I understand, this needs to be done within the same session as otherwise the read is granted only for the session.
What you can do, is create a stored procedure/package that will grant read access and then return the data. Use it as a SQL Override on your SQ. This way SQ will read the data as usual. The concept:
CREATE PROCEDURE ReadMyData AS
BEGIN
execute immediate 'GiveMeTheReadAccess';
select * from MyTable;
END;
And use the ReadMyData on the Source Qualifier.
I am trying to save data into my table using an interactive grid with the help of custom plsql. I am running into an "ORA-01403-no data found" error while inserting data and I can't figure out why.
This is my plsql custom process which I run. Appreciate your help.
DECLARE
em_id NUMBER;
BEGIN
CASE :apex$row_status
WHEN 'C'
THEN
SELECT NVL (MAX (emergency_id), 0) + 1
INTO em_id
FROM emp_emergency_contact;
INSERT INTO emp_emergency_contact
(emergency_id, emp_id, emergency_name, emergency_relation
)
VALUES (em_id, :emp_id, :emergency_name, :emergency_relation
);
WHEN 'U'
THEN
UPDATE emp_emergency_contact
SET emergency_name = :emergency_name,
emergency_relation = :emergency_relation
WHERE emergency_id = :emergency_id;
WHEN 'D'
THEN
DELETE emp_emergency_contact
WHERE emergency_id = :emergency_id;
END CASE;
END;
So far I have not come across any documented way on how to use custom PL/SQL logic for processing submitted rows of APEX 5.1 Interactive Grid via AJAX call.
You are getting no data found error because the return is expected to be in certain json format.
The example you have provided is not too complex and can be with done using standard "Interactive Grid - Automatic Row Processing (DML)" process, which is an AJAX approach. If AJAX call is not important then you can create your own PL/SQL process with custom logic. Example of which is demonstrated in "Sample Interactive Grids" package application, check out Advanced > Custom Server Processing page in this application for more information.
I agree with Scott, you should be using a sequence or identity column for ids.
Not entirely sure. A 'select into' can raise a no_data_found exception, but yours shouldn't.
That being said, you shouldn't have max(id)+1 anywhere in your code. This is a bug. Use a sequence or identity column instead.
I have gotten this many times so the first thing I do is go look at any columns in my grid sql that are not part of the "Save", they are from a join for data only.
I just got it again and it was a heading sort column that I had as a column type of "Number". I changed it to display only and the "Save" now works.
Although, I had already set the "Source" of the column to "Query Only" which is also needed.
It is a bummer the Ajax error message doesn't at least give the column name that caused the error.
Hope this helps someone..
BillC
Add a RETURNING INTO clause after the insert. IG expects a primary key to be returned to query the inserted row.
Please check my query below
<cfquery datasource="quackit" name="insertuser">
INSERT INTO user (user_id, group_id)
VALUES (#form.usr_id#,#form.access_flg#)
</cfquery>
But I am getting Error executing database query
I am able to fetch the data ,Please correct me where I am doing wrong
Use cfqueryparam. You are wide open to sql injection right now. The error probably comes from one of your form variables being blank, which you will need to check for either way.
We can't give more precise advice without details on the specific database error. If it's not due to the form feeding in bad data, it has something to do with your database structure (perhaps you are trying to insert an invalid foreign key, or leaving off a required field).
I am having an array of structure. I need to insert all the rows from that array to a table.
So I have simply used cfquery inside cfloop to insert into the database.
Some people suggested me not to use cfquery inside cfloop as each time it will make a new connection to the database.
But in my case Is there any way I can do this without using cfloop inside cfquery?
Its not so much about maintaining connections as hitting the server with 'n' requests to insert or update data for every iteration in the cfloop. This will seem ok with a test of a few records, but then when you throw it into production and your client pushes your application to look around a couple of hundred rows then you're going to hit the database server a couple of hundred times as well.
As Scott suggests you should see about looping around to build a single query rather than the multiple hits to the database. Looping around inside the cfquery has the benefit that you can use cfqueryparam, but if you can trust the data ie. it has already been sanatised, you might find it easier to use something like cfsavecontent to build up your query and output the string inside the cfquery at the end.
I have used both the query inside loop and loop inside query method. While having the loop inside the query is theoretically faster, it is not always the case. You have to try each method and see what works best in your situation.
Here is the syntax for loop inside query, using oracle for the sake of picking a database.
insert into table
(field1, field2, etc)
select null, null, etc
from dual
where 1 = 2
<cfloop>
union
select <cfqueryparam value="#value1#">
, <cfqueryparam value="#value2#">
etc
from dual
</cfloop>
Depending on the database, convert your array of structures to XML, then pass that as a single parameter to a stored procedure.
In the stored procedure, do an INSERT INTO SELECT, where the SELECT statement selects data from the XML packet. You could insert hundreds or thousands of records with a single INSERT statement this way.
Here's an example.
There is a limit to how many <CFQUERY><cfloop>... iterations you can do when using <cfqueryparam>. This is also vendor specific. If you do not know how many records you will be generating, it is best to remove <cfqueryparam>, if it is safe to do so. Make sure your data is coming from trusted sources & is sanitised. This approach can save huge amounts of processing time, because it is only make one call to the database server, unlike an outer loop.
I'm trying to get Korma to output the SQL it would execute so I can debug a problem I'm having, but the docs are very terse on how to use the as-sql function. Can anyone give me an example of how to make Korma output the SQL for an INSERT query?
from: http://sqlkorma.com/api/0.3.0/korma.core.html
dry-run
(dry-run & body)
Wrap around a set of queries to print to the console all SQL that would
be run and return dummy values instead of executing them.
If you want to get the SQL query as a string, there is also sql-only
(println
(sql-only
(select users)))