Tutorial by Examples: b

When trying to open a Database Connection with QODBC please ensure You have QODBC driver available Your server has an ODBC interface and is enabled to (this depends on your ODBC driver installations) use shared memory access, TCP/IP connections or named pipe connection. All connections only ...
Searches can also be done on elasticsearch using a search DSL.The query element within the search request body allows to define a query using the Query DSL. GET /my_index/type/_search { "query" : { "term" : { "field_to_search" : "search_item" }...
A basic but illustrative heatmap showing correlations between a number of variables. import pandas as pd import seaborn as sns import numpy as np # Sample dataframe with date index and five variables np.random.seed(123) df = pd.DataFrame(np.random.uniform(-0.25,0.25,size=(5, 5)), ...
In this example i will show how to formulate an rest controller to get and post data to the database using JPA with the most ease and least code. In this example we will refer to the data table named buyerRequirement . BuyingRequirement.java @Entity @Table(name = "BUYINGREQUIREMENTS&q...
Let’s Take an Example with Structure of Movie, here we have defined the structure as Codable. So, We can encode and decode it easily. struct Movie: Codable { enum MovieGenere: String, Codable { case horror, skifi, comedy, adventure, animation } var name : String v...
~~ Could be used on non-numeric values. A numeric expression will be first converted to a number and then performed bitwise NOT operation on it. If expression cannot be converted to numeric value, it will convert to 0. true and false bool values are exceptions, where true is presented as numeric v...
Here are some basic best practices for Excel: Flat File Database - Excel IS a Flat File application and should be treated as such Less Worksheet/Workbooks is more. Analyzing will be much faster with fewer worksheets/workbooks to go through. Try to ensure that all raw data is on one workshe...
A simple OGL 4.0 GLSL shader program that shows the use shader subroutines. The program is executed with a phyton script. To run the script, PyOpenGL and NumPy must be installed. The subroutines switch between different geometry generated in the geometry shader and change the surface representatio...
STUFF(Original_Expression, Start, Length, Replacement_expression) STUFF() function inserts Replacement_expression, at the start position specified, along with removing the characters specified using Length parameter. Select FirstName, LastName,Email, STUFF(Email, 2, 3, '*****') as StuffedEmail Fr...
1.The Unit return type declaration is optional for functions. The following codes are equivalent. fun printHello(name: String?): Unit { if (name != null) println("Hello ${name}") } fun printHello(name: String?) { ... } 2.Single-Ex...
Replace firebase values with your app api values: import firebase from 'firebase'; componentWillMount() { firebase.initializeApp({ apiKey: "yourAPIKey", authDomain: "authDomainNAme", databaseURL: "yourDomainBaseURL", projectId: "yourProjectID", ...
When performing data science tasks, it’s common to want to use data found on the internet. You’ll usually be able to access this data via an Application Programming Interface(API) or in other formats. However, there are times when the data you want can only be accessed as part of a web page. In case...
While using scrollviews in storyboard it's better to calculate content size according to number of views present in scrollview rather than giving content size programatically with static value. Here are the steps to get content size dynamically. Step 1 : Add Scrollview to view in storyboard and ...
app.module.ts import {appStoreProviders} from "./app.store"; providers : [ ... appStoreProviders, ... ] app.store.ts import {InjectionToken} from '@angular/core'; import {createStore, Store, compose, StoreEnhancer} from 'redux'; import {AppState, default as reduce...
MCVE's should start the Shiny app when they are copied in the console. An easy way to do this is using the shinyApp function. For example: why is my checkbox not responding? library(shiny) ui <- fluidPage( checkboxInput('checkbox', 'click me'), verbatimTextOutput('text') ) serv...
animated_android_dialog_box.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="16dp"> &...
Here is an example of image pulling using Go and Docker Engine API and the same progress bars as the ones shown when you run docker pull your_image_name in the CLI. For the purposes of the progress bars are used some ANSI codes. package yourpackage import ( "context" "en...
function REReplaceCallback(re,str,callback) { /* Thanks to Ben Nadel "Learning ColdFusion 8: REMatch() For Regular Expression Matching" from 2007-06-13 https://www.bennadel.com/blog/769-learning-coldfusion-8-rematch-for-regular-expression-matching.h...
REReplaceCallback('YOUR REGEX GOES HERE','AND YOUR STRING HERE',function(groups) { //now you can access the 'groups' array containing all the captured groups return result; //return whatever you've processed inside });
store the cookie with three parts. function onLogin($user) { $token = GenerateRandomToken(); // generate a token, should be 128 - 256 bit storeTokenForUser($user, $token); $cookie = $user . ':' . $token; $mac = hash_hmac('sha256', $cookie, SECRET_KEY); $cookie .= ':' . $mac...

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