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• BindingList collection in wpf

  - by grid-wpf-architect

  Hi , I have BindingList collection, i want to add two event in the collection. one is BeforeChange and another one is afterChange, BeforeChange = Need to raise before we start editing the record. AfterChange = Need to raise after editing completed.

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• Always-indexed MySQL indexing/searching replacements for InnoDB?

  - by Chad Johnson

  I am using InnoDB for a MySQL table, and obviously queries using LIKE and RLIKE/REGEXP can take a lot of time. I've tried Spinx, and it works great, except I have to re-index context at intervals. I can re-index every minute, but I am wondering if there is either 1) a setting in Sphinx to keep records always indexed or 2) other software besides Sphinx that will keep records always indexed. I want it where that immediately upon inserting or updating a record, the index is updated.

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• Permissions done on MySQL side or PHP side?

  - by Kerry

  When I am grabbing data from my table that require permissions, should all the permission be done there? Such as checking for an admin or if they can view the data (in MySQL)? Or should I grab it if they have a record at all, then check the specific actions (such as view, add, edit, delete) on the PHP side?

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• Castle ActiveRecord using Linq to Nhibernate Example

  - by Eric Neunaber

  I have been using the ActiveRecord library for many years. Recently I started a new project and I'm including the AR 2.0 release in this project. I saw that it shipped with the Linq to Nhibernate library. Are there any good examples of how to use Linq to Nhibernate with the Active Record library?

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• Database concurrency issue in .NET application

  - by MC.

  If userA deleted OrderA while userB is modifying OrderA, then userB saves OrderA then there is no order in the database to be updated. My problem is there is no error! The SqlDataAdapter.Update succeeds and returns a "1" indicating a record was modified when this is not true. Does anybody know how this is supposed to work, thanks.

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• ACCESS.Visual basic. Make treeView object

  - by Fantomas

  I have a database(3 tables). I want to build treeView. I don't know how to create recordset and how to retrieve record from it.

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• to find the last 7 days Records in sqlite?

  - by Praveen Chandrasekaran

  i would need to know the past 7 days record. i want to wrote a query for that in where condition. i have very basic knowledge in sqlite. Please help me for this query.

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• Defining a different primary key in Mongomapper

  - by ming yeow

  I am defining a primary key in MongoMapper. class B key :_id, string key :externalId, string end The problem is that everything i add a new record in B, it appears that I need to explicity specify the _id, when it is already defined in the external id B.new(:_id=>"123", :external_id=>"123 ) That does not quite make sense. There should be a way to specify externalId as the primary key, no?

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• Django - 2 fields unique together

  - by webvulture

  Suppose, I want to record say poll choices by users everyday. In this case, i have a table named vote which has columns poll , choice and user-id . So how can i out the constraint (maybe in the django models or wherever possible) that poll and user-id both should not be the same for any entry but like the same user can vote for various different polls once and obviously various users can vote for the same poll. I hope I am clear.

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• SubSonic 3 LeftOuterJoin

  - by michaelpearce

  I have read in this forum that left outer join syntax is not supported by subsonic in an answer to a question on the topic by "Apocatastasis". I have the same issue in that when I create a query using the .LeftOuterJoin the resulting sql has an inner join rather than a left outer join. Can someone please confirm that LeftOuterJoin is indeed not supported and, if that is the case, why is it included in the active record syntax? Thanks Michael

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• sql UPDATE, a calculation is used multiple times, can it just be calculated once?

  - by Zachery Delafosse

  UPDATE `play` SET `counter1` = `counter1` + LEAST(`maxchange`, FLOOR(`x` / `y`) ), `counter2` = `counter2` - LEAST(`maxchange`, FLOOR(`x` / `y`) ), `x` = MOD(`x`, `y`) WHERE `x` `y` AND `maxchange` 0 As you can see, " LEAST(`maxchange`, FLOOR(`x` / `y`) ) " is used multiple times, but it should always have the same value. Is there a way to optimize this, to only calculate once? I'm coding this in PHP, for the record.

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• datagrid speed issue

  - by girish

  i m binding gridview in asp.net application... i m about to bind some thousand records in datagrid... on RowDataBound event of the grid i need to check if the log in user is authorised to view the perticuler record...so i need to send database request...like wise such other two to three operation requires to send request to database.... about three to four request are sended to database during each row bound of the gridview...is it effective on speed of the grid?

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• Can we write hashtable into file ?

  - by tiendv

  I have hashtable, my program want to record the valuse of hashtable to process later! But i have a quesiton . Can web write oject hastable in to file ? if can,how to load that file ?

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• How do I make all the finders on the model ignorecase?

  - by Glex

  I have a model with several attributes, among them title and artist. The case of title and artist should be ignored in all the Active Record finders. Basically, if title or artist are present in the :conditions (or dynamically i.e. find_all_by_artist), then the WHERE artist = :artist should become WHERE UPPER(artist) = UPPER(:artist) or something along these lines. Is there a way of doing it with Rails?

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• Oracle select query

  - by Jasim

  I have a table like this C1 C2 C3 Code 1 2 3 33 1 2 3 34 2 4 1 14 1 2 3 14 i want to select only those record whose code is appearing only in single row. ie, in this case rows with code 33 and 34.. as they appear only once in this table. How can i write a query for that

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• SQL Join query, getting ManagerName

  - by user279521

  I have an tblEmployeeProfile & a tblPersonnel. tblPersonnel is an HR table, that consists of all employees in the company; tblEmployeeProfile contains details about an employee's position. tblPersonnel.PersonnelID tblPersonnel.FirstName tblPersonnel.MiddleName tblPersonnel.LastName tblPersonnel.PhoneNumber tblPersonnel.Email tblEmployeeProfile.EmployeeID tblEmployeeProfile.ManagerID tblEmployeeProfile.DepartmentID tblEmployeeProfile.JobCategoryID tblEmployeeProfile.SalaryID I want to return a record with the following fields: EmployeeID, FirstName, MiddleName, LastName, Email, ManagerFullName where EmployeeID = @EmployeeID *tblEmployeeProfile.ManagerID = tblPersonnel.PersonnelID* I can't seem to get the query correct for getting the ManagerFullName

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• using JSTL get values from table ture or false i wants to print(map) thses values Yes or No in our j

  - by mansoor

  i get values from table true or false which i set boolean when i save a new record. But i want when i retive these values from table using JSTL How i could print(map) these true and false value on YES and NO values in our jsp pages.

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• Get ID of the object saved with association

  - by Pravin

  Hi, Here is my scenario: I have three models Subscriber, Subscription, Plan, with has_many :through relationship between Subscriber and Plans. A subscriber can have multiple plans with one active plan. Whenever a subscriber selects a plan I save it using accepts_nested_attributes_for :subscriptions. I get one plan from the form. Now my problem is I want to get the ID of the record created in subscriptions table.

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• In TableView How can i show "Showmore" option fordisplaying more option?

  - by Ankit

  I have used TableView and i am displaying Data coming from the Web.NOW I WANT TO PERFORMING the Paging TableView so after 5 record i want to show "showmore" Option and by pressing "showmore" It Display remaining data so how it is possible?

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• Selecting records with specific month and year in SQL Server 2005

  - by John

  I want to list records with a particular month and year. The table name is 'Arrival' and 'date' is the field that stores the date that the record was added. This is to be done from a C# application. For example, if the user selects month as 'April' and year as '2009' in the application, it will list all the records that were added on April,2009. (I only need the query, hope I can figure out the rest :) )

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• Extra Small Spacing

  - by Doug

  removed So if you look at the tabs and look at hw2, you'll notice it has a little extra spacing that overlaps the spacing on the right. That's because wrapped the div in the <li>. You will notice the others not having it. I don't understand why is it making that extra little spacing after I wrap it. Just for the record, this is for CSS spacing which has nothing to do with the JS. Update: I found a ghetto work around!

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• In Python, how do I do a string replacement AND retrive the replaced substring?

  - by mike

  In Perl, I would write: $x = "abbbc"; $x =~ s/(b+)/z/; print "Replaced $1 and ended up with $x\n"; # "Replaced bbb and ended up with azc" How do I do this in Python -- do a regular-expression string replacement and record what it was that got replaced?

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• Web Test Tool that can capture amf calls and replay them?

  - by Lieven Cardoen

  Is there a tool that can record amf calls being made from a flex application (swf) and replay them? + do a load test? I tried Visual Studio 2010 and with FluorineFX this works. But are there other tools around that can do the same?

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• Return dataset in dataflow

  - by praveen

  Hi All, Could I get ideas on retrieving the dataset using lookup method. Basically, my scenario as I have source data needs to lookup for other source table and on matching column from source I need to get all the records from other source data. its a one to many relations. I tried Lookup but gives only one record on matching condition, OLE DB command don't retrieve any data as it will do only Insert/Update operations. Thanks prav

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• how to use exceptions in this scenario?

  - by jess

  Hi, I have a method which handles a set of records.This method,return true\false after processing.So,if all the records are processed(doing some db updates),will return true.Now,suppose after processing 1 record,some exception is thrown,should I write result=false(at the end of method result is returned) in catch block? And,allow processing of other records to be done?

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