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• Is it possible to remove a duplicate value from a datatable in c#?

  - by Pandiya Chendur

  I have a datatable with a column MobileNo.... My datatable has 150 rows and each row has MobileNo... Now how to check every MobileNo is unique by parsing all the datarows of the datatable in c#? EDIT: "This datatable is being created by reading a CSV file"

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• Are GUIDs necessary to use interfaces in Delphi?

  - by codeelegance

  The official documentation says they are optional. I know COM interop requires a unique identifier for each interface but every interface example I see has a GUID whether it's used with COM or not? Is there any benefit to including a GUID if its not going to be used with COM?

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• SQL subquery question

  - by seo20

  I have the following SQL SELECT Seq.UserSessionSequenceID, Usr.SessionGuid, Usr.UserSessionID, Usr.SiteID, Seq.Timestamp, Seq.UrlTitle, Seq.Url FROM tblUserSession Usr INNER JOIN tblUserSessionSequence Seq ON Usr.UserSessionID = Seq.UserSessionID WHERE (Usr.Timestamp > DATEADD(mi, -45, GETDATE())) AND (Usr.SiteID = 15) ORDER BY Usr.Timestamp DESC Pretty simple stuff. There are by nature multiple UserSessionIDs rows in tblUserSessionSequence. I ONLY want to return the latest (top 1) row with unique UserSessionID. How do I do that?

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• [Android] Putting Serializable Classes into SQL?

  - by CaseyB

  Here's the situation. I have a bunch of objects that implement Serializable that I want to store in a SQL database. I have two questions Is there a way to serialize the object directly into the database Is that the best way to do it or should I Write the object out to a formatting String and put it in the database that way and then parse it back out Write each member to the database with a field that is unique to each object

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• Help getting the following create table function to work with mysql and C#

  - by Matt

  string createTable = "CREATE TABLE IF NOT EXISTS " + m_strDatabase + "_TimeLogs (logName VARCHAR(16), logTime INTEGER, logCountry TEXT, UNIQUE(logName)) TYPE=MyISAM;"; When this runs, no table is created. No errors either. Im using an ODBC connector. the variable passes in the db name, so that the table created would be users_TimeLogs if the database was called users for example. Am I doing something wrong?

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• Rich text box with spell checker

  - by user329755

  Hi, I have a very unique requirement for a rich text box with spell check and auto text. The spell check will not happen on any other site thus i need to have the dictionary and the spell check logic in my site only. It should be open source as i will then add auto text feature to that text box. Any help will be appreciated. Thanks.

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• Default FileField names for Django files

  - by Adam Nelson

  I have a model: class Example(models.Model): unique_hash = models.CharField(max_length=32,unique=True) content = models.FileField(upload_to='source',blank=True,verbose_name="HTML Content File") I would like to be able to set the content filename to default to a callable, but I don't see any way to have the callable reference unique_hash (or vice versa). Is this possible?

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• Mysql - GROUP BY Avoid using tempoary

  - by jwzk

  The goal of this query is to get a total of unique records (by IP) per ref ID. SELECT COUNT(DISTINCT ip), GROUP_CONCAT(ref.id) FROM `sess` sess JOIN `ref` USING(row_id) WHERE sess.time BETWEEN '2010-04-21 00:00:00' AND '2010-04-21 23:59:59' GROUP BY ref.id ORDER BY sess.time DESC The query works fine, but its using a temporary table. Any ideas?

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• How can I map UIDs to user names using Perl library functions?

  - by Mike

  I'm looking for a way of mapping a uid (unique number representing a system user) to a user name using Perl. Please don't suggest greping /etc/passwd :) Edit As a clarification, I wasn't looking for a solution that involved reading /etc/passwd explicitly. I realize that under the hood any solution would end up doing this, but I was searching for a library function to do it for me.

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• Variable Binding Class

  - by Davis

  Hi, I believe this is a tough one... I'm trying to create a collection of variable binding in a class. It is intended to look something like this: Dim x as integer, s as string Dim c as new VBindClass x = 1 s = "Hello" c.Add x, s Debug.Print c.value(x) '= 1 Debug.Print c.value(s) '= "Hello" Is there some function that allow us to retrieve a unique ID for a given variable and also get/set based on variable?

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• Repeating random variables in VBA

  - by Soo

  How can I use randomize and rnd to get a repeating list of random variables? By repeating list, I mean if you run a loop to get 10 random numbers, each random number in the list will be unique. In addition, if you were to run this sequence again, you would get the same 10 random numbers as before.

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• FormsAuthentication AuthCookie data type

  - by FreshCode

  Does the original data type of the username string in a call to FormsAuthentication.SetAuthCookie(...) make any difference with regards to security or code maintainability? As I understand it, the cookie is encrypted and used to identify a user on each request. I'm curious whether it should affect the design of the primary key on my Users table in my database, eg. Guid vs int or a unique username string.

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• Generating multiple random numbers

  - by Jasl

  I want to generate 25 unique random numbers and list them in a console. The numbers should be atleast 10 characters long. Any easy way to do that?

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• PHP string parsing

  - by tmatthews

  I am trying to parse a list of operating system instances with their unique identifiers. I am looking for a solution to parse a text string, and pass the values into two variables. The string to be parsed is as followed: "Ubuntu 9.10" {40f2324d-a6b2-44e4-90c3-0c5fa82c987d}

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• how to use database name as a value

  - by user316833

  I have more than 1000 access databases with the same table names.Each database has a unique name. In each database, I want to add column to one existing table and populate that new column (all rows in the table would be the same) with the database name. I found the example below - How can I alter this to give the new column the name of the database. ALTER TABLE TestTable ADD NewColumn INT; UPDATE TestTable SET NewColumn = 0;

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• A Query to remove relationships that do not belong [closed]

  - by Segfault

  In a SQL Server 2008 R2 database, given this schema: AgentsAccounts _______________ AgentID int UNIQUE AccountID FinalAgents ___________ AgentID I need to create a query that does this: For each AgentID 'final' in FinalAgents remove all of the OTHER AgentID's from AgentsAccounts that have the same AccountID as 'final'. So if the tables have these rows before the query: AgentsAccounts AgentID AccountID 1 A 2 A 3 B 4 B FinalAgents 1 3 then after the query the AgentsAccounts table will look like this: AgentsAccounts AgentID AccountID 1 A 3 B What T-SQL query will delete the correct rows without using a curosr?

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• Get dialog input field IDs in CKEditor

  - by rt-uk

  Each input field in the CKEditor dialogs are renamed with a unique number, but the number changes depending on what options are visible. I need to reference 'txtUrl' which has an id something like #35_textInput. So far I have discovered that something like this should work: alert(CKEDITOR.instances.myElement.document.$.body.getId('txtUrl')); But it doesn't. Please help.

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• Drupal, Views: can I use 1 filter, for many CCK fields ?

  - by Patrick

  Hi, I'm using Views in Drupal. I want an exposed filter selecting the ndoes containing a specific word. But I noticed I cannot search more then one CCK field per filter. Since I want to expose it, I want an unique text-input field for all CCK Fields: is that possible ? At the moment I can only add a new filter for each CCK field. Thanks

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• Sort MySQL result set using comparison between 2 columns of same value type

  - by Kyobul

  Hello, I have a table containing last_updated_1 and last_updated_2 columns, used respectively for text and images update time on a post. I wish I could get a result set of 10 rows based on all time last updated records contained in the 2 columns, ex. row 1 = last_updated_1 record, row 2 = last_updated_2 record, row 3 = last_updated_1 record, etc. How could I compare inside a MySQL query the both columns values, to get unique & mixed result set ? Thank you in advance for your help

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• How to find input element id by value?

  - by Abs

  Hello all, How do I get the id of an input element based on its value? The values will always be unique and there are only 7 of them. I have tried this: $('#wrapper').find("input[value='"+value+"']").each(function(){ return this.id; }); But nothing is returned! Thanks all for any help

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• TSql Lookup function

  - by OldMan

  I have a bunch of dimension tables that have unique ID and Name fields. I need a T-SQL function that returns an ID when passed a table name and a value for the name field. I'm guessing the query would build a little query then execute it? Performance isn't an issue since this is a one time ETL thing.

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• MYSQL autoincrement a column or just have an integer, difference?

  - by David19801

  Hi, If I have a column, set as primary index, and set as INT. If I don't set it as auto increment and just insert random integers which are unique into it, does that slow down future queries compared to autincrementing? Does it speed things up if I run OPTIMIZE on a table with its primary and only index as INT? (assuming only 2 columns, and second column is just some INT value) (the main worry is the upper limit on the autoincrement as theres lots of adds and deletes in my table)

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• is it ok to store rather big amount of data in session ?

  - by Omu

  I'm doing a survey builder, and I think to store the survey in session with a unique guid key until the user creates it fully and saves it I'm thinking it is going to be an array of 100~200 objects (8 properties class)

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• Distinct by property of class by linq

  - by phenevo

  I have a collection: List<Car> cars=new List<Car> Cars are uniquely identified by CarCode. I have three cars in the collection, and two with identical CarCodes. How can I use LINQ to convert this collection to Cars with unique CarCodes?

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• Django database - how to add this column in raw SQL.

  - by alex

  Suppose I have my models set up already. class books(models.Model): title = models.CharField... ISBN = models.Integer... What if I want to add this column to my table? user = models.ForeignKey(User, unique=True) How would I write the raw SQL in my database so that this column works?

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