Tutorial by Examples: le

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...

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)

Worker Node: #Run the following on the worker node to leave the swarm. docker swarm leave Node left the swarm. If the node has the Manager role, you will get a warning about maintaining the quorum of Managers. You can use --force to leave on the manager node: #Manager Node docker swarm l...

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, ...

SQOOP provides facility to import all tables sqoop import-all-tables \ --connect <rdbms-jdbc-url> \ --username <username> \ --password <password> \ --hive-import \ --create-hive-table \ --hive-database <dbname> \ --warehouse-dir <warehouse-dir> Important poin...

If you are new to middleware in Express check out the Overview in the Remarks section. First, we are going to setup a simple Hello World app that will be referenced and added to during the examples. var express = require('express'); var app = express(); app.get('/', function(req, res) { r...

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...

A good VOD (Video On Demand) service should start with the basics. Lets say you have a directory on your server that is not publicly accessible, yet through some sort of portal or paywall you want to allow users to access your media. var movie = path.resolve('./public/' + req.params.filename); ...

Use conditional compilation to ensure that code only compiles for the intended instruction set (such as x86). Otherwise code could become invalid if the program is compiled for another architecture, such as ARM processors. #![feature(asm)] // Any valid x86 code is valid for x86_64 as well. Be ca...

The export tool exports a set of files from HDFS back to an RDBMS. The target table must already exist in the database. The input files are read and parsed into a set of records according to the user-specified delimiters. Example : sqoop export \ --connect="jdbc:<databaseconnector>&quo...

To show you how work the views, we will assume that we want to query the document of type people. To do so, we will first need a design document that will hold our views. Note: for the purpose of the example, we will use many views inside of 1 design document. Therefore, in a production environment...

JavaFX has a binding API, which provides ways of binding one property to the other. This means that whenever one property's value is changed, the value of the bound property is updated automatically. An example of simple binding: SimpleIntegerProperty first =new SimpleIntegerProperty(5); //create a...

Installation Additional dependencies are required for Redis support. Install both Celery and the dependencies in one go using the celery[redis] bundle: $ pip install -U celery[redis] Configuration Configure the location of your Redis database: BROKER_URL = 'redis://localhost:6379/0' The UR...

To list available login shells : cat /etc/shells Example: $ cat /etc/shells # /etc/shells: valid login shells /bin/sh /bin/dash /bin/bash /bin/rbash

This is same as reading a manual for a command: man /path/to/man/file

Spring Boot is a bootstrapping framework for Spring applications. It has seamless support for integrating with Jersey also. One of the advantages of this (from the perspective of a Jersey user), is that you have access to Spring's vast ecosystem. To get started, create a new standalone (non-wepapp)...

You should have a plain CMake project myproject, and we are going to make an Eclipse workspace outside of it: myproject/ .git/ CMakeLists.txt src/ main.cpp workspace/ myproject/ Release/ Debug/ Qt (optional) Get latest Eclipse ...