Query or query view in webtemplate

Hi guys,
I am working with one webtemplate and related queries/query views.we have different strategy for changing if its query or queryview thats been used in template.
1.How can I find if its Queries or Queryviews that been used for my dataproviders in my webtemplate?I am working with WAD3.5
2.Whats the difference between a query and a query view?what difference does it make if we use query or queryview while building and using a webtemplate?
Thanks alot.
P Olin

hi
you should first understand that Query view is nothing but a modified view of the Query. You run a query, do some filtering, navigation or do some changes to the look and then save it as a query view. so the answers would be
1. You open the data provider at the bottom of your webtemplate and there you can see if the data provider is a Query or a view (from the radio buttons)
2. it makes no difference whether u use a Query or query view in a web template. It is up to you to decide in what format you want to see the web report. If you want the web report to display the report in the format of the Query, then you would use Query as data provider. If you have to show the web report in the format of the Query view, then you would use Query view as the data provider.
thanks

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Select query in materialized view with two dblinks

Hi All,
We have oracle 10g On windows.
We are trying to create materialized view. Scenario is we have base table on other database and we are creating mview on different database.
Basa database have two schema's and i am selecting records from that two schema's using two private db links.
But when i am tryin gto create mview its not getting created. After 15 hrs. its still showing creation command and not finished.
Query is :-
Is it good practice to have two db links in select query of materialized view.

Billy Verreynne wrote:
Chanchal Wankhade wrote:
Is it good practice to have two db links in select query of materialized view.Same db link being used twice, or two different db links?
If the former, you ideally want the local Oracle db to send the join to the remote database, and for the remote database to drive the join between those 2 tables. There is a hint (<i>driving_site</i>) that can be used - or the join query can be defined on the remote database as a view, and the local materialised view can then use that remote view.
If you have 2 different db links and joining across these - usually a bad idea to perform distributed database joins. There are lots of limitations as to how the tables can be joined. Worse case, full table scans of both remote tables, pulling all the rows from the 2 remote database tables to the local database, and joining these on the local database.
I have seen some severe performance issues in the past as a result of distributed joins. I'll rather use 2 materialised views for pulling both distributed tables's data locally, and then do the join on local data (using indexes, partition pruning, etc)Hi Billy,
My scenario is i have two database database A and database B. Database A is having two schema's SCOTT AND HR. SCOTT schema have select privileges on HR schema.
DB LINK is between Database B to Database A. name is db.link.B.A.oracle.com.
What if i priovide while creating materialized view, the schema name before the table name in database B for this particuler table so it will pick up the table from that schema using same DB LINK(db.link.B.A.oracle.com.) that i am using to fetch records from SCOTT schema.
Above schnario is like two base schema's and one db link using two schema.

Query SharePoint List View

As per http://msdn.microsoft.com/en-us/library/ms434064.aspx if we use
list.GetItems(query, view.ID.ToString("B").ToUpper());
properties of the view that is specified by the viewName parameter override the properties that are specified in the query object that is passed through the query parameter. For example, if the query
object includes a tag that specifies only items containing a particular column value, while the view specifies to return all items, this method retrieves all of the items
So is there any way to query a sharepoint list view (not All Items) using CAML query?
I this retrieving view in a data table and query it later, which is an option but might give a performance degradation.
Regards, Aj (http://www.aj-sharepoint.blogspot.com/) MCTS

Hello,
Did you try with SPView.Query method? If not then this can be query to specific view.
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spview.query.aspx
Hemendra:Yesterday is just a memory,Tomorrow we may never see
Please remember to mark the replies as answers if they help and unmark them if they provide no help

Snowflake dimension: named query vs. database view

A test question features a Product table with a Product Size code; Product Size description is taken from ProductSize table. As far as I can tell, the question asks me to choose between (a) setting up a database view joining Product and ProductSize, and
(b) doing the join in a data-source-view named query. I don't see a clear winner. (My thinking is as follows. Yes, he view would speed up the processing, even if not materialized. On the other hand, with a small dataset, the performance gain would be
minor in absolute terms. Do I want to have an extra database object in the picture?) Yet the question's author does. Can anyone advise please?

Hi Demyan,
According to your description, you want to know which is better, using named query in datasource view or using database view, right?
Based on my research, there is no performance differences between using named query in datasource view and using database view because they both result in SQL query being sent to the source system. Here is a blog which discuss this issue.
Consistency: If you already have logic in database views, I would continue to use them. As long as you know that you go to one spot to view/change the logic. Putting the logic in 2 different spots could lead to confusion.
Security Permissions: often you may not have permission to alter the source databases, in this case you have no choice but to setup named queries in the dsv.
Reference
http://geekswithblogs.net/darrengosbell/archive/2006/09/05/90278.aspx
http://bennyaustin.wordpress.com/2013/07/16/dbview/
Regards,
Charlie Liao
TechNet Community Support

Changing the query on a view object

I have a view object right now, based on an entity. It is the default view object, so that means the query in the view object is straight forward, it grabs all of the attributes from the table. And there is no WHERE clause.
In reality I only want to show a finite set of rows from my table. Every time a record is changed/edited in this entity and committed, a new row in the database is created with the same information (I'm using CreateWithParams) except for a few columns.
I actually don't really have update on this table, just creation of new rows. But to the user, I want it to 'look' like they are editing something in the table.
Example:
12, 11:32,Thompson, 60 (the user edits this information in an adf table, and a new row is created in the db)
12, 11:55, Thompson, 75
I have a timestamp (see above) field in the database that is used as part of my primary key, so that I know which record is the latest.
When the VO query is run, I want the user to only see the latest row from the db.
12, 11:55, Thompson, 75
So...
I went to my VO, and I changed the WHERE query to add this:
where t1.TimeStamp = (Select MAX(t2.TimeStamp) FROM rcl.x t2 where t1.uid = t2.uid);
Now, this isn't a mysql/sql question. There's actually a better query that I'd rather run, but the VO editor doesn't allow me to change the query itself....
When I save the new WHERE to my VO, run my page again, I get the expected result (showing me only the latest records).
However, when I try and sort on the table in which my data is displayed, I am now getting ORDER BY errors.
I don't want my VO to be read-only sql based. I want to be able to update my table, so I have my VO running off of the entity.
Why doesn't the VO allow me to change the query itself? (Like do a subquery, instead of having my where clause do the work)
Why are order by errors being thrown when I sort on my adf table after changing the where clause in my view?
Hopefully I wasn't too convoluted in the explanation of my problem..
Thanks in advance,
Joel

HI Joe,
Regarding your problem you can do one of the following tasks:
1- easily to tuning on your view object, I mean in the tuning page of the view you can set that only return 1 record or 2-3 record fetch not all the record.
in the order by you will order by the timestamp field and descending.
2- you can order by the timestamp descending and in the where clause only set the rownum<2 (will return the last record) you can also set rownum<5 and get the 4 last record etc.
3-editing the view query in the expert mode is not advised at all because of many consequences that you will face.
4- maybe it is not bat that you add a readonly view for the table you mentioned and every time you unpdate the entity just re-execute the read-only view.( this method maybe is good maybe is not it depends on your business logic)
Regards.
Edited by: Amir Khanof on Sep 3, 2010 11:11 PM

Running a query in a View Designer results in an error, but running the same query in a Query window works

Hi everyone,
Just as my title says, I have a query which I've written in a query window and it works perfectly.
But when I try to add the query code into the view designer, it throws a Syntax error.
Error in ON clause near '('.Unable to parse query text.
Also, when running the query from the view designer (pressing red exclamation mark) I get a different error.
SQL Execution Error.Executed SQL statement: SELECT Sku, ParentSku, UPC, ...Error Source: .Net SqlClient Data ProviderError Message: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
Has anyone else experienced this and is there any workaround?
I have tried to create the view with T-SQL (CREATE VIEW etc.), but when opening it in the view designer I get the error from the 1st image.
Thank you,
Radu

Hi Radu,
Yes, I have faced similar issue. I had a View and it was working totally fine but when once I opened it in via right click - View Design, it was giving parse error.
Cause is that Query designer parse and executes the query without error but the way View designer works, it can't parse it.
Later I ignored View desinger and just used T-SQL like CREATE/ALTER view.
Workaround is to do right click on View - Script View as - CREATE To/ ATER To.
Regarding Timeout error, again the issue with View designer which couldn't execute query in there and ended up with timeout error.
If your SELECT query and SELECT * FROM YourView works fine in Query designer, you are good to go.
Similar threads:
View with errors still saved, and still works...
Parsing error when creating view
-Vaibhav Chaudhari

Select query written on view giving dump

Hi All,
I have written the following query on COAS view in my code:
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        FROM coas
          WHERE
                aufnr IN r_aufrm AND
                auart IN s_auart AND
                autyp = c_autyp_01 AND
                kokrs = c_kokrs_mbca.
When records in range r_aufrm are too many like 6000 or so it gives me a run time error on this query - DBIF_RSQL_INVALID_RSQL. Error description says size of select query is large.
Question : Is this bug coming because I am using the view. If i select the records on table AUFK (only table on which the view is created), will it rectify the problem?? I am asking this because it's in production and I cant make any change and test then and there.
Note: the range r_aufrm contains two types of records for AUFNR - 1. with sign GE and others with sign LE. So I cannot use for all entries. If I still can, please tell me how?
Thanks a looot!
Waiting for the response,
Navita

Thanks All!!
I think, this range limit has caused the problem. Range limit is 999 records.
Just one question I have. At runtime when I check the number of entries in r_aufrm in the query, I get 6000 entries. So, does it allow 6000 records to enter the range variable even if it has a limit of 999. Is it the case that, in select query only it will throw a dump if records in range exceed 999??
SELECT aufnr bukrs INTO TABLE gt_aufnr
FROM coas
WHERE
aufnr IN r_aufrm AND
auart IN s_auart AND
autyp = c_autyp_01 AND
kokrs = c_kokrs_mbca.
Please clear my doubt.
Thanks a lot for ur help!!!!
Navita

Query on Materialized view and materialized view log

I am creating a materialized view something like this.but getting following error:
ERROR at line 1:
ORA-12032: cannot use rowid column from materialized view log on "SCOTT"."EMP"
SQL> create snapshot log on scott.emp;
Materialized view log created.
SQL> create materialized view scott_emp refresh fast on demand as select deptno,sum(sal) sum_sal from scott.emp group by deptno;
ERROR at line 1:
ORA-12032: cannot use rowid column from materialized view log on "SCOTT"."EMP"
Note when i have my query in materialized view as "select * from emp;" in place of
"select deptno,sum(sal) sum_sal from scott.emp group by deptno;" This code works fine.
How do i have a materialized with with a group by clause.
Thanks in Advance

Got the answer myself.
I wasnt adding all the required columns.
CREATE MATERIALIZED VIEW LOG ON scott.emp
WITH SEQUENCE, ROWID (<all the required columns>)
INCLUDING NEW VALUES;
Anyways,
Thanks guys...

Encapsulating a query in a view with "parameters"

I have a complex query using analytic functions and an inline view, something like:
select * from (
select a, b, c, row_number() over (partition by x, order by y) rn
where b like 'XXX%'
where rn = 1;
(The actual query is a little more complex, but that's the idea). This query performs very well.
As the query is of some general use, I'd like to package it up. However, the 'XXX%' pattern will vary with each use.
If I try to make a view v which is the query minus the XXX% where clause, the optimiser cannot merge the where clause and the view in a query like
select * from v where b like 'XXX%'
This doesn't surprise me too much - merging like that is going to be hard (if indeed it's possible at all!) As a result, the query using the view is significantly slower.
Is there any way of making my original query reusable? For PL/SQL, I can use a function returning a REF CURSOR and taking the pattern as a parameter - but I need to use this from SQL.
I could write a pipelined function and then do select * from table(my_fn('XXX%')). However, this is in 8i, where I don't have that option. Also, for a pipelined function, I'd need to define a record type and an associated table type - what seems like quite a lot of code for what is conceptually pretty simple.
Have I missed any obvious options? I can live with the pipelined function and "no way until 9i" - but only as a general answer. For my current specific issue, that's equivalent to "you can't do this".
I thought of using SYS_CONTEXT, but if I understand correctly, I can only use that in PL/SQL, as I can't set the context outside of an authorised package. Is that right, or is there a way I could use contexts? (Hmm, I need to be able to use the query from SQ, but I could probably execute a PL/SQL procedure before running the query, to set things up - does that help?)
Thanks for any suggestions.
Paul.

SYS_CONTEXT would work, as would package global variables.
I once wrote an example about this (though with TABLE function but for your case the principle stays the same) which you may find here:
Re: TABLE FUNCTION - Using database view - send parameters to the function.
hth, michael

Can I write a SELECT query on maintenance view?

Hi,
Can we write a select query on maint. view? If not what are the views on which we can write the select queries?

hi,
you can write select query for maintenance view, database view and projection view but not helpview as it is only intended for f4 help.
reward if helpful
prasanth

Using Materilaized view in a query .. query is taking time????

Hi I have a query :-
SELECT rownum as id, u.last_name, u.first_name,u.phone phone, u.empid,u.supervisor id
FROM emp_view u -- using view
CONNECT BY PRIOR u.empid = u.supervisor_id
START WITH u.sbcuid = 'ph2755';
here emp_view is a view .
------ The above query is taking 3 sec to execute.
Then I created Materialuized view emp_mv and the the MV query is same as emp_view view query.
After this i executed following sql
SELECT rownum as id, u.last_name, u.first_name,u.phone phone, u.empid,u.supervisor id
FROM emp_mv u -- using materialized view
CONNECT BY PRIOR u.empid = u.supervisor_id
START WITH u.sbcuid = 'ph2755';
this query is taking 15 sec to execute..... :(
can anyone please tell me why MV query is taking time????

Hi,
In your first case you query a view, meaning that you query the underlying tables. These probably have indexes and stats are updated.
In you second case you query a materialized view, meaning that you query the underlying base table of that mview.
This probably do not have the same indexes to support that query.
But of course, I'm just guessing based on the little information provided.
If you want to take this further, please search for "When your query takes too long" and "How to post a tuning request".
These two threads holds valuable information, not only on how to ask this kind of question, but also how to start solving it on your own.
Regards
Peter

Need help with SQL Query with Inline View + Group by

Hello Gurus,
I would really appreciate your time and effort regarding this query. I have the following data set.
Reference_No---Check_Number---Check_Date--------Description-------------------------------Invoice_Number----------Invoice_Type---Paid_Amount-----Vendor_Number
1234567----------11223-------------- 7/5/2008----------paid for cleaning----------------------44345563------------------I-----------------*20.00*-------------19
1234567----------11223--------------7/5/2008-----------Adjustment for bad quality---------44345563------------------A-----------------10.00------------19
7654321----------11223--------------7/5/2008-----------Adjustment from last billing cycle-----23543556-------------------A--------------------50.00--------------19
4653456----------11223--------------7/5/2008-----------paid for cleaning------------------------35654765--------------------I---------------------30.00-------------19
Please Ignore '----', added it for clarity
I am trying to write a query to aggregate paid_amount based on Reference_No, Check_Number, Payment_Date, Invoice_Number, Invoice_Type, Vendor_Number and display description with Invoice_type 'I' when there are multiple records with the same Reference_No, Check_Number, Payment_Date, Invoice_Number, Invoice_Type, Vendor_Number. When there are no multiple records I want to display the respective Description.
The query should return the following data set
Reference_No---Check_Number---Check_Date--------Description-------------------------------Invoice_Number----------Invoice_Type---Paid_Amount-----Vendor_Number
1234567----------11223-------------- 7/5/2008----------paid for cleaning----------------------44345563------------------I-----------------*10.00*------------19
7654321----------11223--------------7/5/2008-----------Adjustment from last billing cycle-----23543556-------------------A--------------------50.00--------------19
4653456----------11223--------------7/5/2008-----------paid for cleaning------------------------35654765-------------------I---------------------30.00--------------19
The following is my query. I am kind of lost.
select B.Description, A.sequence_id,A.check_date, A.check_number, A.invoice_number, A.amount, A.vendor_number
from (
select sequence_id,check_date, check_number, invoice_number, sum(paid_amount) amount, vendor_number
from INVOICE
group by sequence_id,check_date, check_number, invoice_number, vendor_number
) A, INVOICE B
where A.sequence_id = B.sequence_id
Thanks,
Nick

It looks like it is a duplicate thread - correct me if i'm wrong in this case ->
Need help with SQL Query with Inline View + Group by
Regards.
Satyaki De.

Issue in attaching dynamic Query to the View Object

Hi,
We are having a View Object attached to the JRAD page.
The View object is build thru as Expert mode. There is no any CDATA
SQLQUERY stored in the VO.xml file.
We are building the query dynamically and attaching it to the VO in
RUNTIME.
The code is as below
// getFcstQuery() is method used to return the dynamic query
String query = getFcstQuery();
// Setting the Query to View Object
getViewDef().setQuery(query);
setQuery(query);
The JRAD page has sorting option on 5 columns. so when a sorting is
done the data are interchanged between the clients.
For example how the query will be build id
Say for the first user the query will be as
"select ename,eno,dno from emp where eno=1 "
for the second user the query may be
"select ename,eno,dno from emp where eno=2 "
Now if both the user hit the sorting on any of the column the data is
interchagned between this both users.
Please provide solution if possible.
Thanks in advance
Balamohan

Hi Steve,
We are using 5 tables in building the query.
Say,
1) summary
2) transactions
3) transactions_history
4) rules
5) rules_temp
but only 2 tables are used at a time
for read only we are using
summary table
for edit only mode we are using
1) transactions and
2) rules
tables
for edit and recalculate mode we are using
1) transactions and
2) rules_temp
tables
for one more condition we are using
1) transactions_history and
2) rules
tables
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Becoz of this we are building the query dynamically.
Thanks
Balamohan

Query's Quick Viewer Simulation.

Hi everybody.
I'm trying to do anything similar to the Query's Quick Viewer, but I don't know how exactly do the dragging simulation for make a field wider.
Doen anyone knows how to do it?
Cheers!!!

HI,
U can go through the transaction SQVI.
From there itself u can create any new quick viewer like that
Thanks,
Shankar

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Hi all,
If you have three pages and want to add Documents library as list view web part to these three pages with different query (Programmatically), Do you need to create three different views for Documents library or it is possible to have different query when
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thanks and appreciate all kind of advice.

When you add a List View Web Part to a page, SharePoint actually copies the selected view query into the Web Part itself. For example:
You create a custom view on a list called "Mede71's View" and you configure it only show the Title column
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You go back to your list and change "Mede71's View" and add the "Modified Date" column
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Query or query view in webtemplate

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