Tutorial by Examples: u

Prerequisites JDK 1.7 or later installed. You can find the Oracle JDK's here. Steps Download Payara Server Full. Unzip the Payara Server at some location on your computer. We will use C:\payara41 as INSTALL_DIR for Windows users and /payara41 for Linux/Mac users. Starting / stopping Pa...

Let's understand something. JavaEE consists of a number of specifications. When you install an Application Server (Payara for example), you install all of the specifications at once. For example there's a specification for an ORM called JPA (Java Persistence API), a specification to build Component ...

Using the Profiler Class One very good practice is to use Profiler.BeginSample and Profiler.EndSample because it will have its own entry in the Profiler Window. Also, those tag will be stripped out on non-Development build using using ConditionalAttribute, so you don't need to remove them from you...

The %>% operator can also be used to pipe the dplyr output into ggplot. This creates a unified exploratory data analysis (EDA) pipeline that is easily customizable. This method is faster than doing the aggregations internally in ggplot and has the added benefit of avoiding unnecessary intermediat...

All SML expressions return a value. The REPL stores the return value of the last evaluated expression. it provides the value of the last evaluated expression within the REPL. smluser> sml Standard ML of New Jersey v110.78 [built: Thu Jul 23 11:21:58 2015] - 3+4; val it = 7 : int - it; val i...

Assuming you have a handle on the Hibernate Session object, in this case named session: List<Object[]> result = session.createNativeQuery("SELECT * FROM some_table").list(); for (Object[] row : result) { for (Object col : row) { System.out.print(col); } } Thi...

let Source = Folder.Files("\\jsds1.live\dfs\Userprofiles\ixh500\UPM_Profile\desktop\PQ Desktop Demos\Set 2"), #"Lowercased Text" = Table.TransformColumns(Source,{{"Extension", Text.Lower}}), #"Filtered Rows" = Table.SelectRows(#"Lowercased ...

Previous Quarter Sales:=CALCULATE(FactSales[Sales], PREVIOUSQUARTER(DimDate[DateKey])) (Calculates the total sales for the previous quarter, based on the Sales column in the FactSales table and the DateKey in the DimDate table, depending on the filters applied in a PivotTable or PivotChart)

You could migrate from team foundation version control to git by using an open source tool called Git-TF. Migration will also transfer your existing history by converting tfs checkins to git commits. To put your solution into Git by using Git-TF follow these steps: Download Git-TF You can downloa...

program-one. FD important-file. 01 file-record. COPY record-layout. DATA DIVISION. 01 memory-record. COPY record-layout. PROCEDURE DIVISION. ... COPY record-move. ... COPY record-move. program-two. DATA DIVISION. 01 print-record. COPY record-lay...

The matplotlib.animation package offer some classes for creating animations. FuncAnimation creates animations by repeatedly calling a function. Here we use a function animate() that changes the coordinates of a point on the graph of a sine function. import numpy as np import matplotlib.pyplot as p...

We start off by creating an audio context and then create an oscillator which is the easiest way to check that your setup works. (Example fiddle) // We can either use the standard AudioContext or the webkitAudioContext (Safari) var audioContext = (window.AudioContext || window.webkitAudioContext);...

The best way to get started using Spring-Integration in your project is with a dependency management system, like gradle. dependencies { compile 'org.springframework.integration:spring-integration-core:4.3.5.RELEASE' } Below is a very simple example using the gateway, service-activator mes...

You can install Celery either via the Python Package Index (PyPI) or from source. To install the latest version using pip: $ pip install celery To install using easy_install: $ easy_install celery Downloading and installing from source Download the latest version of Celery from http://pypi...

This example will create an EC2 instance of t2.micro type in N.Virginia region running Amazon Linux. During the execution, it will ask to select the KeyPair to use and an I.P. CIDR from where you can SSH to the instance, use default to make SSH open to the internet { "AWSTemplateFormatVersion"...

You can create unlogged tables so that you can make the tables considerably faster. Unlogged table skips writing write-ahead log which means it's not crash-safe and unable to replicate. CREATE UNLOGGED TABLE person ( person_id BIGINT NOT NULL PRIMARY KEY, last_name VARCHAR(255) NOT NULL, ...

Assuming that you are working with Windows 7 PC Step 1: GOTO -> C:\Windows\System32\drivers\etc Where you will find a file named “hosts”, kindly copy it and paste it at the same location. A copy file of hosts will be created there. Now we need to make some modifications in this file but if you...

To query a field which name is contained in a variable, use the field function. some_field = :id some_value = 10 from p in Post, where: field(p, ^some_field) == ^some_value

To join and and for instance filter on the joined table use JoinQueryOver. IList<Customer> customers = session.QueryOver<Customer>() .Inner.JoinQueryOver(x => x.Organisation) .Where(y => y.Name == "Acme Inc") .List();

Let's create middleware that adds a property called requestTime to the request object. var requestTime = function (req, res, next) { req.requestTime = Date.now(); next(); }; Now let's modify the logging function from the previous example to utilize the requestTime middleware. myLogge...