Tutorial by Examples: od

String types like UnicodeString, AnsiString, WideString and UTF8String are stored in a memory using their respective encoding (see String Types for more details). Assigning one type of string into another may result in a conversion. Type string is designed to be encoding independent - you should nev...

$sku = 'some-sku'; $productId = Mage::getModel('catalog/product')->getIdBySku($sku); if($productId){ //sku exists }

You can improve the security for data transit or storing by implementing encrypting techniques. Basically there are two approaches when using System.Security.Cryptography: symmetric and asymmetric. Symmetric Encryption This method uses a private key in order to perform the data transformation. ...

Many modern Prolog systems are in continuous development and have added new features to address classic shortcomings of the language. Unfortunately, many Prolog textbooks and even teaching courses still introduce only the outdated prolog. This topic is intended to illustrate how modern Prolog has ov...

The dependencies for your projects are specified in a single text file called a Podfile. CocoaPods will resolve dependencies between libraries, fetch the resulting source code, then link it together in an Xcode workspace to build your project. Create a podfile # Next line contains target platf...

The unreal mode exploits two facts on how both Intel and AMD processors load and save the information to describe a segment. The processor caches the descriptor information fetched during a move in a selector register in protected mode. These information are stored in an architectural invisibl...

R contains a Date class, which is created with as.Date(), which takes a string or vector of strings, and if the date is not in ISO 8601 date format YYYY-MM-DD, a formatting string of strptime-style tokens. as.Date('2016-08-01') # in ISO format, so does not require formatting string ## [1] &quot...

import { NgModule } from '@angular/core'; @NgModule({ declarations: [], // components your module owns. imports: [], // other modules your module needs. providers: [], // providers available to your module. bootstrap: [] // bootstrap this root component. }) export class MyModule {} ...

// app.module.ts import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { HttpModule } from '@angular/http'; import { MyRootComponent } from './app.component'; @NgModule({ declarations: [MyRootComponent], imports: [BrowserModule, Ht...

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { MyModule } from './app.module'; platformBrowserDynamic().bootstrapModule( MyModule ); In this example, MyModule is the module containing your root component. By bootstrapping MyModule your Angul...

Prototype: aggregate(zeroValue, seqOp, combOp) Description: aggregate() lets you take an RDD and generate a single value that is of a different type than what was stored in the original RDD. Parameters: zeroValue: The initialization value, for your result, in the desired format. seqOp: ...

C# allows using pointer variables in a function of code block when it is marked by the unsafe modifier. The unsafe code or the unmanaged code is a code block that uses a pointer variable. A pointer is a variable whose value is the address of another variable i.e., the direct address of the memory l...

You can pass a pointer variable to a method as parameter. The following example illustrates this: using System; namespace UnsafeCodeApplication { class TestPointer { public unsafe void swap(int* p, int *q) { int temp = *p; *p = *q; *q = temp; ...

For compiling unsafe code, you have to specify the /unsafe command-line switch with command-line compiler. For example, to compile a program named prog1.cs containing unsafe code, from command line, give the command: csc /unsafe prog1.cs If you are using Visual Studio IDE then you need to enabl...

There are frequent behavior patterns that can result in a lot of boilerplate code. By declaring a method that takes a Closure as a parameter, you can simplify your program. As an example, it is a common pattern to retrieve a database connection, start a transaction, do work, and then either commit ...

Lets create a simple transformation to convert a CSV into an XML file. Our Transformation has to do the following: Read the CSV file Build the greetings message Save the greetings in the XML file Create a Transformation: Here's how to start the Transformation: To the left of the works...

Pentaho Data Integration comes in two varieties: Community Edition (CE) - Free version for developers Enterprise Edition (EE) - Paid version for enterprise use Installation steps: You can download Pentaho Data Integration Community Edition from Sourceforge.net. For the Enterprise Editio...

This example is the second of a series of 3. If you didn't yet, please read the Block diagram example first. With a block diagram that complies with the 10 rules (see the Block diagram example), the VHDL coding becomes straightforward: the large surrounding rectangle becomes the VHDL entity,...

This implementation of IDatabaseInitializer drops and recreates the database if the model changes automatically. Usage: public class MyContext : DbContext { public MyContext() { Database.SetInitializer(new DropCreateDatabaseIfModelChanges<MyContext>()); } }

A complex type allows you to map selected fields of a database table into a single type that is a child of the main type. [ComplexType] public class Address { public string Street { get; set; } public string Street_2 { get; set; } public string City { get; set; } public string...