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• T-SQL foreign key check constraint

  - by PaN1C_Showt1Me

  When you create a foreign key constraint in a table and you create the script in MS SQL Management Studio, it looks like this. ALTER TABLE T1 WITH CHECK ADD CONSTRAINT FK_T1 FOREIGN KEY(project_id) REFERENCES T2 (project_id) GO ALTER TABLE T1 CHECK CONSTRAINT FK_T1 GO What I don't understand is what purpose has the second alter with check…

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• django copy foreign key data to another model

  - by John

  hi, how can i copy foreign key data from one object to another? Thanks John

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• iPad: Event handler for "Next"/"Enter" key?

  - by MikeN

  How do you catch the "Enter" key event on a UITextFIeld on the iPad?

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• Get group key from bridge table

  - by Mads Jensen

  I'm developing an ETL process, and need a bridge table for a one-to-many relationship between a fact table and a dimension table (MySQL database). There is a limited number of combinations (some thousands), so I want to re-use group keys from the bridge table to to limit the size. Any group of dimensions belonging to a fact row will consist…

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• Getting key with the highest value from a hash in Perl

  - by syker

  What is the eassiest way to get a key with the highest value from a hash in Perl?

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• nhibernate : mapping to column other than primary key

  - by frosty

  I have the following map. My intention is for the order.BasketId to map to orderItem.BasketId. Tho when i look at the sql i see that it's mapping order.Id to orderItem.BasketId. How do i define in my order map which order property to map against basketId. It seems to default to the primary key. <property…

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• Convert Public Key to something readable for sharing

  - by dede

  How can I convert RSAPublicKey into something readable (public key sharing reasons) and then convert it back to RSAPublicKey?

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• Dismiss iPhone Mail View Controller Keyboard with Return Key

  - by Cirrostratus

  How do I dismiss the keyboard in the MFMailComposeViewController when the user hits the return key?

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• When should I consider representing the primary-key ...?

  - by JMSA

  When should I consider representing the primary-key as classes? Should we only represent primary keys as classes when a table uses composite-key? For example: public class PrimaryKey { ... ... ...} Then private PrimaryKey _parentID; public PrimaryKey ParentID { get { return _parentID; } …

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• Home key press behaviour

  - by Arnab

  While developing a sample android application i have constructed two activities 1)Activity 1 2)Activity 2 Now Activity 2 is the foreground activity whereas Activity 1 is the background one. Now user presses Home key. The application(i.e. both the activities) dissappear. Now is we relaunch the application we see Activity 1 as the…

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• Xcode: How-to bind a key that triggers application to appear (background daemon)

  - by Shyam

  Hi, I am struggling to create a certain kind of application my Mac, using Xcode and Interface Builder (RubyCocoa). As I am a nuby (but understand some Ruby), I would like to know how I could let my interface appear only if a key is pushed (a toggle), while the program is running in the background. Similar behavior like when I'd…

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• read java.security.key stored as object inside a file which is in jar

  - by Tal

  I saved a PublicKey instance in a file using ObjectOutputStream. This file is then stored inside a jar file which is then loaded by JBoss. I'm trying to read this file but it throws me an exception telling that it's not serializable. Here is the code : InputStream input =…

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• ColdFusion static key/value list?

  - by richardtallent

  I have a database table that is a dictionary of defined terms -- key, value. I want to load the dictionary in the application scope from the database, and keep it there for performance (it doesn't change). I gather this is probably some sort of "struct," but I'm extremely…

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• Approach for altering Primary Key from GUID to BigInt in SQL Server related tables

  - by Tom

  I have two tables with 10-20 million rows that have GUID primary keys and at leat 12 tables related via foreign key. The base tables have 10-20 indexes each. We are moving from GUID to BigInt primary keys. I'm wondering if anyone has any suggestions on an approach. …

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• Delete an entity by key without fetching it first in app engine (using JDO)

  - by Peter Recore

  Is there a way to delete an entity without having to fetch it from the datastore first? I am assuming I already have the key or id for the entity. I'm thinking of something like deleteObjectById that would be an analogue to getObjectById on PersistenceManager. The…

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• Rails 3: habtm migration, primary key issue

  - by Brian Wigginton

  I'm trying to setup a migration file for a habtm relationship, however when I run the migration I'm getting the following error: Primary key is not allowed in a has_and_belongs_to_many join table (parts_vehicles). Here is my migration file…

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• Generate Android Soft Key via Java Code

  - by Shubh

  How can I generate Soft Key using Java Code instead generate using XML, so i can set my own ASCII value array.

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• using different key for to_json :methods

  - by fphilipe

  When using :methods in to_json, is there a way to rename the key? I'm trying to replace the real id with a base62 version of it and I want that the value of base62_id has the key id. @obj.to_json( :except => :id :methods => :base62_id…

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• jKey (JavaScript key shortcut plugin) Issue

  - by Oscar Godson

  Me and a friend are writing a plugin for jQuery that makes it easy for devs to add key shortcuts and we're damn close but no cigar. We're having issues with the key combos. It seems like we are having issues when you call the same selector multiple…

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• Get a value from hashtable by a part of its key

  - by htf

  Hi. Say I have a Hashtable<String, Object> with such keys and values: apple => 1 orange => 2 mossberg => 3 I can use the standard get method to get 1 by "apple", but what I want is getting the same value (or a list of values) by…

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• Best way to get a reasonably random key for MYSQL records

  - by Steve N

  Hi there, I need to generate a reasonably random unique key for a table. It should be something like a GUID for MYSQL. I've tried UUID, but it looks like only the first few characters are actually random- the rest are the same every time I…

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• Trigger button click with JavaScript on Enter key in Text Box

  - by ziondreams

  I have one text input and one button (see below). How can I use JavaScript to trigger the button's click event when the Enter key is pressed inside the text box? There is already a different submit button on my current page, so I can't…

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• Entity Framework model and foreign key property

  - by verror

  I have 2 tables that I import to EF model. First table has a property [section] that acts as foreign key to the second table. When I map this property in model to the table and try to compile I get this error: Problem in Mapping…

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• Mysql on duplicate key update + sub query

  - by jwzk

  Using the answer from this question: http://stackoverflow.com/questions/662877/need-mysql-insert-select-query-for-tables-with-millions-of-records new_table * date * record_id (pk) * data_field INSERT INTO new_table…

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• Decryption with the public key in iphone

  - by vignesh

  Hi all, I have a public key and an encrypted string. I could encrypt with publickey successfully.But when i try to decrypt using the publickey it fails. I mean when i pass the publickey seckeyDecrypt it fails. I have…

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