Tutorial by Examples: p

Let's update table from the first example: declare query_text varchar2(1000) := 'update my_table set column_value = :P_VAL where id = :P_ID'; id number := 2; value varchar2(100) := 'Bonjour le monde!'; begin execute immediate query_text using value, id; end; /

While building electron apps, usually the backend is in separate folder (js files) and front end is in a separate folder (html files). In the backend, in order to use the database, we have to include the nedb package with the require statement as follows. var Datastore = require('nedb'),db = new Da...

How comp, comp-1 ... comp-5 are implemented is implementation dependent. Format Normal Implementation Comp Big endian binary integer Comp-1 4 byte floating point Comp-2 8 byte floating point Comp-3 Packed decimal 123 is stored as x'123c' Comp-5 Binary In...

The default style files generated and compiled by @angular/cli are css. If you want to use scss instead, generate your project with: ng new project_name --style=scss If you want to use sass, generate your project with: ng new project_name --style=sass

Yarn is an alternative for npm, the default package manager on @angular/cli. If you want to use yarn as package manager for @angular/cli follow this steps: Requirements yarn (npm install --global yarn or see the installation page) @angular/cli (npm install -g @angular/cli or yarn global add @an...

This example shows an efficient way of calculating power using template metaprogramming. template <int base, unsigned int exponent> struct power { static const int halfvalue = power<base, exponent / 2>::value; static const int value = halfvalue * halfvalue * power<base, e...

This is a simple example on how you can automate tests for a console application that interact with standard input and standard output. The tested application read and sum every new line and will provide the result after a single white line is provided. The power shell script write "pass"...

Acknowledgement This example is adapted from this article on type inference What is type Inference? Type Inference is the mechanism that allows the compiler to deduce what types are used and where. This mechanism is based on an algorithm often called “Hindley-Milner” or “HM”. See below some of th...

=> Original Post <= ASP.NET Core uses the ASPNETCORE_ENVIRONMENT environment variable to determine the current environment. By default, if you run your application without setting this value, it will automatically default to the Production environment. > dotnet run Project TestApp (.NETC...

$a = 5; $b = 10; $a <=> $a; // 0, because $a == $a $a <=> $b; // -1, because $a < $b $b <=> $a; // 1, because $b > $a

Please me mindful of importing all necessary libraries required. This example uses InMemoryDbService from angular-in-memory-web-api to provide the JSON data from mock API. Live demo service.ts: import { Injectable } from '@angular/core'; import { Headers, Http } from '@angular/http'; import...

The machine learns to predict an output when given an input. Each training case consists of an input and a target output. Regression The target ouput takes continuous values. Predicting the price of a stock Predicting a house price Classification The target output is a class label. Wha...

Unsupervised learning allows us to approach problems with little or no idea what our results should look like. We can derive structure from data where we don't necessarily know the effect of the variables. The most common type of unsupervised learning is cluster analysis or clustering. It is the ta...

Many modern Image Processing algorithms use patches are their basic element to work on. For instance one could denoise patches (See BM3D Algorithm). Yet when building the image form the processed patches we have many results for the same pixel. One way to deal with it is taking the average (Empir...

There are two ways to push an element to an array: array_push and $array[] = The array_push is used like this: $array = [1,2,3]; $newArraySize = array_push($array, 5, 6); // The method returns the new size of the array print_r($array); // Array is passed by reference, therefore the original ar...

Detailed instructions on getting spring-aop set up or installed.

Detailed instructions on getting ngrx set up or installed.

CoAP(Constrained Application Protocol) provides a request/response interaction model between application endpoints typically used along with REST.RFC

Bukkit has a system called Event Priorities to help plugins handle events in the correct older. The seven priorities are (in older from first executed to last): Lowest Low Normal (default) High Highest Monitor If you are planning to cancel a lot of events (e.g. protection plugin) it would...

Steps to create MYSQL database Login to amazon account and select RDS service Select Launch DB Instance from the instance tab By defaul MYSQL Community Edition will be selected, hence click the select button Select the database purpose, say production and click next step Provide the mysql ver...