I'm trying to update one value of a compound primary key from within the entity framework and I'm getting this error: "The property 'CustomerID' is part of the object's key information and cannot be modified. "
Here is my code:
Dim customer As Customer = (From c In db.Customer Where c.CustomerID = "xxx" AndAlso c.SiteKey =…
in xml can any concept inhert the attribute of the main concept as an example:
can textbook take the same attribute of book and how? another question if the attribute is a compound noun (i mean two or more words) such as family line it gave me an error when i save it as…
When creating a table with a multi column PRIMARY KEY like this,
CREATE TABLE t (a, b, PRIMARY KEY(a, b))
will it create a compound index that behaves the same as it would when indexed like this?
CREATE INDEX i ON t (a, b)
How do you calculate Average Percentage Yield (APY) with T-SQL? Is there a system function to calculate APY or do I have to create one?
Note: APY = (1 + r/n )^n – 1 where r is the stated annual interest rate and n is the number of times you’ll compound per year.
Following up on a debate that I was having with a colleague. What is the community's opinion on whether or not a section of code can be adequate with respect to decision coverage (all possible decisions have evaluated to true and false) but not block coverage, and if a section of code can be adequate with respect to…
Why is graphviz drawing C to the right of B? I want it to look like
A
B E
C
instead.
digraph {
compound=true
subgraph cluster_1 { a -> b }
b -> c
{rank=same b -> e }
}
I have a code that works in Matlab version R2010a but shows errors in matlab R2008a. I am trying to implement a self organizing fuzzy neural network with extended kalman filter. I have the code running but it only works in matlab version R2010a. It doesn't work with other versions. Any help?
Code attach
function […
In the interest of creating cross-platform code, I'd like to develop a simple financial application in JavaScript. The calculations required involve compound interest and relatively long decimal numbers. I'd like to know what mistakes to avoid when using JavaScript to do this type of math—if it is possible at all!
say I have an Item document with :price and :qty fields. I sometimes want to find all documents matching a given :price AND :qty, and at other times it will be either :price on its own or :qty on its own.
I have already indexed the :price and :qty keys, but do I also need to create a compound index on both together…
template <class EventType>
class IEvent;
class IEventable;
typedef boost::function<void (IEventable&, IEvent&)> behaviorRef;
What is the right way for passing template class IEvent into boost function? With this code I get:
error: functional cast expression list treated as compound expression…
IronRuby is a Open Source implementation of the Ruby programming language for .NET, heavily relying on Microsoft's Dynamic Language Runtime. The project's #1 goal is to be a true Ruby implementation, meaning it runs existing Ruby code. Check out this summary of using the Ruby standard library and 3rd party libraries…
Leaving aside, for a second, Freud’s psychoanalytical definitions, the term “ego” generally refers to a person’s sense of self, and their self-esteem. In casual usage, however, it usually appears in the adjectival form, “egotistical” (most often followed by “jerk”). You don’t need to be a jerk to be a DBA; humility…
Our workplace world is definitely changing. Not only are we taking work home, but we are working during odd hours in some very strange places. I had the pleasure of interviewing Jacques Vigeant, Product Strategy Manager for Oracle Business Intelligence and Enterprise Performance Management, on a Podcast, and…
Normal
0
false
false
false
EN-US
X-NONE
X-NONE
MicrosoftInternetExplorer4
960 students ‘crouched’, ‘touched’ and ‘set’ under the
watchful eye of International Rugby Referee Alain…
I now have changed from GLKBaseEffect to a own shader implementation. I have a shader management, which compiles and applies a shader to the right time and does some shader setup like lights. Please have a look at my vertex shader code. Now, light direction should be provided in eye space, but I think there is…
If you know me personally, then you probably know that I am going blind thanks to a rare genetic eye disease. My eye disease has already been a huge detriment to my eyesight. One of the big things to suffer is my ability to see small things moving fast right in front of me. On a multi-monitor…
Took the little one to the pool tonight for swim lessons. Okay, Okay. They're not really lessons so much as they are "Hey, here's a few bucks, let me rent out a small section of your pool to swim around with my little one"
Saw a dad at the pool. Bluetooth on, iPad in hand, and two year old somewhere around…
Hi All,
I am trying to get update the eye position in my shader from my appliaction but I keep getting error 1281 when I attempt this. I have no problems after the initialization just when i subsequently try to update the values. Here is my code:
void GraphicsObject::SendShadersDDS(char vertFile [], char…
I have an entity (let's say Person) with a set of arbitrary attributes with a known subset of values. I need to search for all of these entities that match all my filter conditions. That is, given a set of Attributes A, I need to find all people that have a set of Attributes that are a superset of A.
For…
I am attempting to implemented an FPS-style camera by updating three vectors: EYE, DIR, UP. These vectors are the same that are used by gluLookAt (since gluLookAt is specified by the position of the camera, the direction it is looking at, and an up vector).
I have already implemented the left-right and…
CodePlex Daily Summary for Thursday, January 06, 2011Popular ReleasesStyleCop for ReSharper: StyleCop for ReSharper 5.1.14980.000: A considerable amount of work has gone into this release: Huge focus on performance around the violation scanning subsystem: - caching added to reduce IO operations around…
I have a Dell Precision M4500, Intel Core i5 CPU, running Linux (Ubuntu Lucid), and would like to keep an eye on CPU temperature.
I've tried lm-sensors: sensors-detect didn't find any sensors; following its hint ("This is relatively common on laptops, where thermal management is handled by ACPI rather…