Filtering unique values in dataset

Hi, I have nice little dataset here, populated from xml. It
contains articles, categories.....
What I need is to initialize my custom menu class with unique
values from categories column. So how do I query my dataset to
return me only unique categories?
I could do it in my xml parser (extract uniques in array),
but that would be poor design.
So please help! Need those uniques out of dataset fast!

Could you please tell me how i will Filter duplicate
valus inside the objectI'm sorry, but I can't read the future.

Similar Messages

Filtering Unique values in the Hash table

Hi Friends,
Could you please tell me I want to Filtering the values in the Hash table.The Values are our own objects.
E.G
class Emp
private String EmpID=null;
public void setEmpId(String Id)
EmpId=id;
public void getEmpId()
return this.EmpId;
public static void main(String[] args)
Hashtable hastab=new Hashtable();
Emp e1=new Emp();
e1.setEmpId("A");
Emp e2=new Emp();
e2.setEmpId("B");
Emp e3=new Emp();
e3.setEmpId("A");
Emp e4=new Emp();
e4.setEmpId("C");
Emp e5=new Emp();
e5.setEmpId("A");
hastab.put("1",e1);
hastab.put("2",e2);
hastab.put("3",e3);
hastab.put("4",e4);
hastab.put("5",e5);
I want to filter the duplicate values in the Hashtable.
Thanks in Advance
Rajesh Kannan

Could you please tell me how i will Filter duplicate
valus inside the objectI'm sorry, but I can't read the future.

Get previous items unique value in new add item form

Hi
I have on list having items related to multiple locations.
Every location is related to one user.
When user logs in it filters the list with that users location.
Now when user click on add new item I want to get the data related to his location using item event listener.
But in new item form there is no way to get the location of that user in event listener as its new item.
So I passed the qury string parameter form list and changed the add item form link and form to get the query string paramter as default value in Add new Item form.
But again when user clicks on save button it redirects to original url without paramter.
How to redirect user to url with parameter on click on Save/Cancel.
Is there any other way to get the previous item unique value in add new item from before executing the event listener?

Hi,
According to your post, my understanding is that you wanted to redirect user to url with parameter on click on Save/Cancel.
You need to modify the onclick event need to as below:
javascript: {{ddwrt:GenFireServerEvent('__redirect={{Home.aspx?Participant={@Participant}&@Activity={@Activity}}}')}}
Here is a similar thread for your reference:
http://social.technet.microsoft.com/Forums/en-US/b506cfe5-650e-4017-b470-9ca0a75cd390/sharepoint-2010-list-how-to-pass-parameters-in-a-url-to-another-page?forum=sharepointcustomizationprevious
In addition, you can creating an intermediate page which just finds the filed value with a DVWP and then redirect to RedirectURL with the filed value on the Query String.
For more information, you can refer to:
Redirect to Another Page from NewForm.aspx with the New Item’s ID
Best Regards,
Linda Li
Linda Li
TechNet Community Support

Auto-Suggest feature in Combo-box LOV is not displaying non-unique values

Hi,
I have an auto-suggest feature implementation on a combo-box lov that displays the name and email-id of a list of people. There are non-unique names in the back-end, for example :
Abraham Mason [email protected]
Abraham Mason [email protected]
But when I use the auto-suggest feature and type in, say 'Ab', instead of showing both the Abraham Masons the auto-suggest displays only one of the values.
As in the example above the email-ids of the two Abraham Masons are different and unique.
If I use the conventional drop down menu of the combo-box then both the values are visible.
Is the auto-suggest feature implemented in a manner so as to display only unique values?
This is the implementation of the auto-suggest feature that I have done -
<af:column headerText="#{bindings.RqmtAtLevel1.hints.Owner.label}"
id="c23" sortable="true" filterable="true"
sortProperty="Owner"
filterFeatures="caseInsensitive">
<af:inputComboboxListOfValues id="ownerId"
popupTitle="#{ResourcesGenBundle['Header.SearchandSelect.Searchandselectanobjectusingad']}: #{bindings.RqmtAtLevel1.hints.Owner.label}"
value="#{row.bindings.Owner.inputValue}"
model="#{row.bindings.Owner.listOfValuesModel}"
required="#{bindings.RqmtAtLevel1.hints.Owner.mandatory}"
columns="#{bindings.RqmtAtLevel1.hints.Owner.displayWidth}"
shortDesc="#{bindings.RqmtAtLevel1.hints.Owner.tooltip}"
autoSubmit="true">
<f:validator binding="#{row.bindings.Owner.validator}"/>
<af:autoSuggestBehavior suggestedItems="#{row.bindings.Owner.suggestedItems}"/>
</af:inputComboboxListOfValues>
</af:column>
Thanks,
Anirudh Acharya

Hi,
don't find a bug entry about this, so if this indeed is a defect then this has not been filed. Do you have a test case ? If you have please zip it up and send it in a mail to me. My mail address is in my OTN profile (just click on my name until you get to the profile). Pleas rename the "zip" extension to "unzip" and mention the JDeveloper release you work with. The test case should work against the Oracle HR schema.
If you need to track the issue, I suggest to file a service request with customer support yourself
Frank

Error 1000: AFx Library library exception: Sql encountered an error: These columns don't currently have unique values.

Hi everyone,
Using the Writer block, configured with a correct SQLAzure instance, I experience this error:
- Error 1000: AFx Library library exception: Sql encountered an error: These columns don't currently have unique values.
I have read that this error can be related to inheritance problems, but my table does not have inheritances of any kind:
CREATE TABLE [dbo].[my_table](
[my_float] [float] NULL
) ON [PRIMARY]
GO
Writer block parameters:
Comma separated list of columns to be saved:
temp (from Bike Rental UCI Dataset)
Data Table name: [dbo].[my_table]
Comma separated list of datatable columns:
[my_float]
The experiment from which I have extracted the writing part was able to correctly write to DB until few days ago. Is it possible that some changes in the platform are causing this issue or am I doing something wrong?
Thank you and best regards,
FV

Hi Maureen,
Yes, the scenario is correct. On SQL profiler I can't see any SQL operation that can lead to that kind of error, but as you were saying it was worth trying anyway having that error message.
New test scenario:
CREATE TABLE [dbo].[my_table_identity](
[ID] [int] IDENTITY(1,1) NOT NULL,
[my_float] [float] NULL,
CONSTRAINT [PK_my_table_identity] PRIMARY KEY CLUSTERED
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
) ON [PRIMARY]
-- These lines work fine on SQL Management Studio
INSERT INTO [dbo].[my_table_identity] (my_float) VALUES (1.23)
INSERT INTO [dbo].[my_table_identity] (my_float) VALUES (1.23)
INSERT INTO [dbo].[my_table_identity] (my_float) VALUES (1.23)
-- I can see all new rows with each one a different ID
SELECT * FROM [dbo].[my_table_identity]
dbo is the default schema for my Azure login.
New writer block parameters:
Comma separated list of columns to be saved: temp
(from Bike Rental UCI Dataset)
Data Table name: my_table_identity
Comma separated list of datatable columns: my_float
I still get the same error: Error 1000: AFx Library library exception: Sql encountered an error: These columns don't currently have unique values.
I have also tried to pass the "instant" column instead of "temp", as it hasn't any duplicated values, but still no luck.
I attach the log file (purged of sensitive information) because I see some error / warnings there.
https://dl.dropboxusercontent.com/u/40411467/azure_log.txt
Thank you again and best regards,
FV

Unable to Enforce Unique Values, Duplicate Values Exist

I have list in SP 2010, it contains roughly 1000 items. I would like to enforce unique values on the title field. I started by cleaning up the list, ensuring that all items already had a unique value. To help with this, I used the export
to excel action, then highlight duplicates within Excel. So as far as I can tell, there are no duplicates within that list column.
However, when I try to enable the option to Enforce Unique Values, I receive the error that duplicate values exist within the field and must be removed.
Steps I've taken so far to identify / resolve duplicate values:
- Multiple exports to Excel from an unfiltered list view, then using highlight duplicates feature > no duplicates found
- deleted ALL versions of every item from the list (except current), ensured they were completely removed by deleting from both site and site collection recycle bins
- Using the SP Powershell console, grabbed all list items and exported all of the "Title" type fields (Item object Title, LinkTitle, LinkTitleNoMenu, etc) to a csv and ran that through excel duplicate checking as well.
Unless there's some rediculous hidden field value that MS expects anyone capable of attempting to enforce unique values on a list (which is simple enough for anyone to figure out - if it doesn't throw an error), then I've exhausted anything I can think
of that might cause the list to report duplicate values for that field.
While I wait to see if someone else has an idea, I'm also going to see what happens if I wipe the Crawl Index and start it from scratch.
- Jon

First, I create index for a column in list settings, it works fine no matter duplicate value exists or not;
then I set enforce unique values in the field, after click OK, I get duplicate values error message.
With SQL Server profiler, I find the call to proc_CheckIfExistingFieldHasDuplicateValues and the parameters. After reviewing this stored procedure in content database,
I create the following script in SQL Server management studio:
declare @siteid
uniqueidentifier
declare @webid
uniqueidentifier
declare @listid
uniqueidentifier
declare @fieldid
uniqueidentifier
set @siteid='F7C40DC9-E5D3-42D7-BE60-09B94FD67BEF'
set @webid='17F02240-CE04-4487-B961-0482B30DDA84'
set @listid='B349AF8D-7238-419D-B6C4-D88194A57EA7'
set @fieldid='195A78AC-FC52-4212-A72B-D03144DC1E24'
SELECT
* FROM TVF_UserData_List(@ListId)
AS U1 INNER
MERGE JOIN
            NameValuePair_Latin1_General_CI_AS
AS NVP1 WITH (INDEX=NameValuePair_Latin1_General_CI_AS_MatchUserData)
ON NVP1.ListId
= @ListId AND NVP1.ItemId
= U1.tp_Id
AND ((NVP1.Level
= 1 AND U1.tp_DraftOwnerId
IS NULL)
OR NVP1.Level
= 2)
AND NOT((DATALENGTH(ISNULL(NVP1.Value,
= 0)) AND U1.tp_Level
= NVP1.Level
AND U1.tp_IsCurrentVersion
= CONVERT(bit, 1)
AND U1.tp_CalculatedVersion
= 0 AND U1.tp_RowOrdinal
= 0 INNER
MERGE JOIN
            NameValuePair_Latin1_General_CI_AS
AS NVP2 WITH (INDEX=NameValuePair_Latin1_General_CI_AS_CI)
ON NVP2.SiteId
= @SiteId AND NVP2.ListId
= @ListId AND NVP2.FieldId
= @FieldId AND NVP2.Value
= NVP1.Value
AND NVP2.ItemId <> NVP1.ItemId
CROSS APPLY TVF_UserData_ListItemLevelRow(NVP2.ListId, NVP2.ItemId,
NVP2.Level, 0)
AS U2 WHERE ((NVP2.Level
= 1 AND U2.tp_DraftOwnerId
IS NULL)
OR NVP2.Level
= 2)
AND NOT((DATALENGTH(ISNULL(NVP2.Value,
= 0))
I can find the duplicate list items based on the result returned by the query above.
Note that you need to change the parameter values accordingly, and change the name of NameValuePair_Latin1_General1_CI_AS table based on the last parameter of the
proc_CheckIfExistingFieldHasDuplicateValues stored procedure. You can review the code of this stored procedure by yourself.
Note that direct operation on the content database in production environment is not supported, please do all these in test environment.

Get unique values from Parent List in Dropdown List SPServices

I have a dropdown list created using the SPServices ($().SPServices.SPCascadeDropdowns). It works as it should, I just need to add a requirement. I need to be able to filter the Parent Lookup list to show only unique values.
$().SPServices.SPCascadeDropdowns({
relationshipList: "ROInsComp",
relationshipListParentColumn: "AIP-RY",
relationshipListChildColumn: "NameAndCode",
parentColumn: "AIP-RY",
childColumn: "NameAndCode",
debug: true});
The issue is that in AIP-RY I have stored Years and each year could be repeated several times
I followed some of the recommendations from this blog:
GetListItems Unique Values
I this is what I tried:
$.ajax({
url: weburl+'https://my-site/_layouts/filter.aspx?ListId='+escape('{544C8B6A-C9B3-4BA‌D-B9CF-B032E5FD07DB}')+'&FieldInternalName='+"AIP-RY" + '&ViewId='+escape('{4B433420-156F-4F4F-9E3C-551DC43B593C}')+'&FilterOnly=1&Filte‌r=1',
success: function(data) {
alert('It worked!');}
No luck so far! Thanks!
EM

Thanks for looking into this. I'm not sure this would work: SPServices.SPCascadeDropdowns
only works (as far as I know) for elements from the same list.
EM

Getting unique values from internal table

Hi Gurus,
From time to time I hit this problem and so far I havn't found any nice solution. I've an internal table with several fields. I would like to get all unique values for one (or several) of these fields. However let say that this table has a lot of entries so making a copy is not an option. Also changing this table in any way is forbiden.
For example for table below I would like to get all unique values for field Number. In this case it would be 1,2,3,4.
Name | Number |
name1 | 1|
name2 | 2|
name3 | 2|
name4 | 3|
name5 | 4|
name5 | 3|
Can anyone propose me better solution than going in the loop through all entries in table? Maybe there is some ABAP functionality that I don't know about?
BR
Marcin Cholewczuk

Let's say that if I sort this table I won't be able to restore it to previous order which is important for me
True...If you sort the table you won't be able to restore. So the only option is to copy/move all the records into another table.
Sorting If you need to retrive unique values. I don't think without sorting the table would be a nice idea and proper programming to proceed ahead.
Regarding logic, as replied earlier
Either we can go with DELETE ADJACENT DUPLICATES or proceed as replied in my earlier post. There might be number of algorithms to resolve this. But we cannot go ahead without sorting or looping.

Get unique value for a range of values from a table

Please help to identify the sql to get unique value for following scenario
Table A has 3 columns
column1 column2 column3

user7666373 wrote:
Please help to identify the sql to get unique value for following scenarioUnique combinations of three columns? If so:
select DISTINCT column1,column2,column3 from A;SY.

Select Statement to Get Unique values in a Column

I am trying to figure out how to get all the unique values from a
table column?
select code from atable sort unique?
I am running 8.1.7
Does anyone know how to do this?
Thanks,

Hi,
Here is the code for that.
Select empno from emp
group by empno
having count(empno) = 1
Regards,
Ganesh R

Getting unique values from an arraylist

Hi
I have an arraylist that contains stringbuffer objects. The arraylist has duplicate values of the objects. I have to create another arraylist with only the unique values from the first arraylist. I tried it many ways and using many functions, but no luck. Can someone provide me the code for this , as i need to do this urgently.
Thank U
Mansoor,

> Sanity check: when are StringBuffers equal?
Same character sequence.
[EDIT] Or so I thought. Just tested, and found I was wrong. A quick glance at the API confirmed my error; StringBuffer doesn't override Object.equals().
~

This column cannot enforce unique values because this list or document library may contain items that are not viewable by all users.

The above error occurs when I place unique constraint on a column in a custom list. This error only occurs because the custom list has been configured to only allow creaters to view and edit their own list items.
I just can't see why that should prevent SP from placing a unique value constraint though.
One easy workaround would be to place the unique constraint on the SQL Server table that represents this list. However, in a hosted environment, it is not always possible to gain access to the backend server. What is more, I am uncomfortable with this
approach as it may break other parts of SP 2010.
Is there any other approach?

Hi,
If SharePoint were to enforce uniqueness on a column in a list where users are only allowed to see and edit list items that have created, then you could have a scenario where -
a. user1 tries to add a new item to the list which violates the uniqueness constraint
b. SharePoint reports an error
c. user1 gets to know that there is another item containing the same value in this list
d. this violates the security settings that you configured (each user should be allowed to only see the items that they have created). Now if you change the permissions settings to allow users to SEE all items, but only
edit items that they have created, this error disappears (obviously).
Now getting to the workaround you mentioned (creating a unique constraint on the SQL Server table). This is not going to be possible for numerous reasons -
a. Modifying (or for that matter, even performing SELECT operations on) the SQL Server tables is an unsupported operation and it will definetely break other things in SharePoint, not
to mention that you will lose all support options from Microsoft. However if you don't care about this, then it will still not be technically possible because...
1. SharePoint does not create a new SQL Server table for every list/library.
2. If you did get around to enforcing a unique constraint in the one single table that SharePoint uses for all lists, then you will be enforcing this constraint on each and every list in all the sites and in all the site
collections that are assigned to that content database.
Please "Mark as Answer" if a post has answered your question or "Vote as Helpful" if it was helpful in some way. Here's
why

How do I count the unique value pairs in two columns of a table?

I have a table (Table 2) that is populated with data from an imported .csv file. On table 1 I need to count the unique value pairs in two columns of Table 2.
Here's what I have:
Date                                        Person
7/10/2011                         A
7/12/2011                         W
7/12/2011                         X
7/12/2011                         X
7/12/2011                         X
7/12/2011                         Z
7/14/2011                         Z
7/15/2011                 X
7/16/2011                         Z
I'm focusing on person "X" and can easily count how many days that person shows up but what I want is to see on how many unique days that person shows up.
Here's the result I'm looking for (Person "X" shows up on 2 different days - 3 times on 7/12/2011 and once on 7/15/2011):
X                    2
I can't seem to find a function that allows me to do that. I also am not allowed to modify Table 2 so that leaves me to come up with a solution on Table 1.
Any ideas would be greatly appreciated.

Hi John,
Not being allowed to modify Table 2 is a minor inconvenience. Just copy (using a formula) the necessary two columns onto Table 1.
Yellow columns may be hidden. The procedure progresses from left to right. All formulas are entered into row 2 then filled down that column to the end of the table. The table must be as long as the list in column A of Table 2.
A2: =Table 2::A
Fill right to column B.
Fill both columns down as far as needed.
I've used actual Date and Time values in column A, formatted to show only the Date part, but the technique will work with text in these cells, provided all cells representing the same 'date' have exactly the same content.
C2: =A&B
This concatenates the contents of each row of columns A and B into a single text string.
D2: =COUNTIF($C$2:C2,C)
This counts the number of occurrences of the Date&Name string on the current row from the first regular cell in column C (C2) to the current cell.
E2: =IF(COUNTIF($B$2:B2,B)=1,MAX($E$1:E1)+1,"")
This constructs the index of first occurrences of each name, in the order they first occur. The index is used by LOOKUP in column F.
F2: =IF(ROW()-1>MAX(E),"",LOOKUP(ROW()-1,$E,$B))
This uses the index value created in E as a search-for value to extract a single copy of the names in column B. The result is a list of all distinct names in the list. Note that spelling differences will be counted as distinct names.The IF statement stops the listing when the last distinct name is extracted.
G2: =IF(LEN(F)>0,COUNTIFS($B,"="&F,$D,"=1"),"")
This counts the number of 'first occurrences of distinct Date & Name strings for each name on the list (ie. the number of distinct dates on which each name appears in the original list).
All of the functions used are described, with at least one example for each, in the iWork formulas and Functions User Guide. You can download the guide, and the Numbers '09 User Guide, via the Help menu in numbers.
Regards,
Barry

Mapping Problem.. I Need to pass Unique value everytime to Target filed.

Hi All,
I need to pass some unique value everytime the message processed to the target field.
Source filed ---> Target Field
can anyone has the UDF to generate like this.. ?
I heard that through RFCLookup we can do that.. by maintaing some table and taking 2 parameters one as input and one as output and everytime when the message processes it will add by one to the previous value and pass to the target field.
I dont know much about these lookups..
Can anyone through some light on this, how i can solve this issue.??
Waiting for your answers.
Thanks&Regards
Deepthi.

Hi Liang,
That's my exact issue.Please let me know when you find the solution.
Actually i tried with some UDF.. its generating unique values whenever mapping is executed.But when we Reboot the system we found that its reinitializing again from "1".
So definetly we need to maintain the count in some database and system has to update evytime according to that.
Iam trying something by calling RFC from UDF and updating the Ztable by incrementing everytime.
I wil let you know if i find any solution..
Meanwhile anyone wants to suggest me... Please respond.
Thanks
Deepthi.

How to have a unique value for each record??

could any 1 help me out in this...
I want to have a column name 'Order No' which should be unique.
How to generate a unique value for each record.??

could any 1 help me out in this...
I want to have a column name 'Order No' which should be unique.
How to generate a unique value for each record.?? If you are using SQL PLUS to create the table try something like
this:
CREATE TABLE ORDER_TEST (
ORD_NO NUMBER (8) NOT NULL PRIMARY KEY,
ORDERDATE DATE,
CUSTID NUMBER (8) NOT NULL,
SHIPDATE DATE,
TOTAL NUMBER (8,2) CONSTRAINT TOTAL_ZERO CHECK
(TOTAL >= 0),
CONSTRAINT ORD_FOREIGN_KEY FOREIGN KEY (CUSTID) REFERENCES
CUSTOMER (CUSTID),
CONSTRAINT ORD_UNIQUE UNIQUE (ORD_NO)
-- or a simpler table example
DROP TABLE ORDER_TEST;
CREATE TABLE ORDER_TEST (
ORD_NO NUMBER (8),
ORDERDATE DATE,
CUSTID NUMBER (8) NOT NULL,
SHIPDATE DATE,
TOTAL NUMBER (8,2) CONSTRAINT TOTAL_ZERO CHECK
(TOTAL >= 0),
CONSTRAINT ORD_UNIQUE UNIQUE (ORD_NO)
note: ORD_NO can also be a primary key
If you are doing the INSERT during runtime from a form first
create a sequence in SQL PLUS to handle the ORD_NO value:
Create SEQUENCE ORDERNO_UNIQUEVAL_sqnc
START WITH 000001
NOMAXVALUE
NOCACHE;
and reference it as the ORD_NO parameter in your INSERT
statement:
ORDERNO_UNIQUEVAL_sqnc.NEXTVAL
note: to maintain data integrity you must use the sequence
everytime you insert a new order to table. To start a new
sequence drop the sequence and re-create it with whatever "START
WITH" value you want.
Hope this helps
Kevin

Filtering unique values in dataset

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