Tutorial by Examples: e

A Table can be written to a TableSink, which is a generic interface to support different formats and file systems. A batch Table can only be written to a BatchTableSink, while a streaming table requires a StreamTableSink. Currently, flink offers only the CsvTableSink interface. Usage In the examp...
Once the sports2000 database has been installed it's time to run it as a standalone server (and not connect to it as a file). Start proenv (proenv in the startmeny on Windows or /usr/install-directory/bin/proenv on Linux/Unix). This example is from Windows. Linux is the same but you need to change...
Unlike other languages, Python doesn't have a do-until or a do-while construct (this will allow code to be executed once before the condition is tested). However, you can combine a while True with a break to achieve the same purpose. a = 10 while True: a = a-1 print(a) if a<7: ...
Pre-requisites: Java 7 Hadoop (Refer here for Hadoop Installation) Mysql Server and Client Installation: Step 1: Download the latest Hive tarball from the downloads page. Step 2: Extract the downloaded tarball (Assumption: The tarball is downloaded in $HOME) tar -xvf /home/username/apache...
How To Choose A Theme Each WordPress install comes with a pre-installed theme. You manage your themes from the Dashboard. Go to Appearance > Themes to install, preview, delete, activate, and update Themes. The current theme is found in the upper left corner of this menu. Hovering over the theme...
This method will create a new Excel Spreadsheet. Pass in the fileName which is a full file path name. using DocumentFormat.OpenXml; using DocumentFormat.OpenXml.Packaging; using DocumentFormat.OpenXml.Spreadsheet; using System; .... void Create(string fileName) { using (Sp...
The subtypes' stream-oriented attributes are called to write objects to a file, bare and using binary default representations. with Ada.Streams.Stream_IO; procedure Main is type Fruit is (Banana, Orange, Pear); type Color_Value is range 0 .. 255; type Color is record R, G, B :...
Reading in a single step: IFS=$'\n' read -r -a arr < file Reading in a loop: arr=() while IFS= read -r line; do arr+=("$line") done 4.0 Using mapfile or readarray (which are synonymous): mapfile -t arr < file readarray -t arr < file
The Pipe implementation import {Pipe, PipeTransform} from '@angular/core'; @Pipe({ name: 'orderBy', pure: false }) export class OrderBy implements PipeTransform { value:string[] =[]; static _orderByComparator(a:any, b:any):number{ if(a === null || typeof a === 'undefin...
app.component.html <div> <div> <div *ngFor="let user of users"> <button class="btn" [@buttonState]="user.active" (click)="user.changeButtonState()">{{user.firstName}}</button> <...
Parent component : import {Component} from '@angular/core'; @Component({ selector: 'parent-component', templateUrl: './parent-component.html' }) export class ParentComponent { users : Array<User> = []; changeUsersActivation(user : User){ user.changeButtonState(); } ...
Create a build job (according to your requirement). For this example I have created a freestyle job (AutoPush) to perform ANT build. We are going to create two variables, PUSH (Choice Parameter) and TAG_NUMBER (String Parameter). We can choose the value YES or NO for PUSH, this will decide whether...
Java technology is both a programming language and a platform. The Java programming language is a high-level object-oriented language that has a particular syntax and style. A Java platform is a particular environment in which Java programming language applications run. There are several Java platf...
The 0.9 release of Kafka introduced a complete redesign of the kafka consumer. If you are interested in the old SimpleConsumer (0.8.X), have a look at this page. If your Kafka installation is newer than 0.8.X, the following codes should work out of the box. Configuration and initialization Kaf...
In your redux store you hold the raw data. Some times the raw data is all you need, but other times you need to derive new data from the raw data, often by combining parts of the raw data. A common use case for deriving data is filtering a list of data based on a criteria, where both the list and t...
The user can call Incrementor.Increment K number of times by pressing a key within '0' .. '9' and it's possible to call Incrementor.Increment faster than the task Incrementor can increment I. with Ada.Text_IO; with Ada.Integer_Text_IO; procedure Main is use Ada.Text_IO; task Incrementor...
Configuration and initialization First, create a maven project and add the following dependency in your pom: <dependencies> <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-clients</artifactId> <version&...
NameStorage SizeDescriptionRangesmallint2 bytessmall-range integer-32768 to +32767integer4 bytesypical choice for integer-2147483648 to +2147483647bigint8 byteslarge-range integer-9223372036854775808 to +9223372036854775807decimalvariableuser-specified precision, exactup to 131072 digits before the...
NameStorage SizeDescriptionLow ValueHigh ValueResolutiontimestamp (without time zone)8 bytesboth date and time (no time zone)4713 BC294276 AD1 microsecond / 14 digitstimestamp (with time zone)8 bytesboth date and time, with time zone4713 BC294276 AD1 microsecond / 14 digitsdate4 bytesdate (no time o...
NameStorage SizeDescriptionRepresentationpoint16 bytesPoint on a plane(x,y)line32 bytesInfinite line{A,B,C}lseg32 bytesFinite line segment((x1,y1),(x2,y2))box32 bytesRectangular box((x1,y1),(x2,y2))path16+16n bytesClosed path (similar to polygon)((x1,y1),...)path16+16n bytesOpen path[(x1,y1),...]pol...

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