Tutorial by Examples: v

# Define which servers to include in the load balancing scheme. # It's best to use the servers' private IPs for better performance and security. upstream backend { ip_hash; server 10.10.10.10 slow_start=30s max_fails=3 fail_timeout=15s; server 10.10.10.12 slow_start=30s max_fa...

XML <Animal> <legs>4</legs> <eyes>2</eyes> <horns>2</horns> <tail>1</tail> </Animal> XPATH boolean(/Animal/tusks) OUTPUT false

XPATH <Animal> <legs>4</legs> <eyes>2</eyes> <horns>2</horns> <tail>1</tail> </Animal> XPATH boolean(/Animal/horns) OUTPUT true

SELECT CURRENT_DATE + '1 day'::INTERVAL SELECT '1999-12-11'::TIMESTAMP + '19 days'::INTERVAL SELECT '1 month'::INTERVAL + '1 month 3 days'::INTERVAL

SELECT string_agg(<TABLE_NAME>.<COLUMN_NAME>, ',') FROM <SCHEMA_NAME>.<TABLE_NAME> T

select * from dict

If the Control has rows. TextBox tb = GridView1.Rows[i].FindControl("TextBox1") as TextBox; Or if it has items. TextBox tb = Repeater1.Items[i].FindControl("TextBox1") as TextBox;

Docker's approach to logging is that you construct your containers in such a way, so that logs are written to standard output (console/terminal). If you already have a container which writes logs to a file, you can redirect it by creating a symbolic link: ln -sf /dev/stdout /var/log/nginx/access.l...

I need to query all the details from virtual machine and update into the MongoDB. Which require the output look like this. { "_id" : ObjectId("5800509f23888a12bccf2347"), "ResourceGrp" : "XYZZ-MachineGrp", "ProcessTime" : ISODate(&q...

$MachinesList # Array $ResourceList # Array $MachineTags # Array pseudo code $mongoDriverPath = 'C:\Program Files (x86)\MongoDB\CSharpDriver 1.7'; Add-Type -Path "$($mongoDriverPath)\MongoDB.Bson.dll"; Add-Type -Path &qu...

Open Visual Studio 2015, navigate to Tools → Extensions → Online and search for Antlr. Download the extension ANTLR Language Support (Created by Sam Harwell) and restart Visual Studio. Create new Console Application Project. Right click on the Solution → Manage Nuget Packages for Solution → Brows...

XML <Deborah> <address>Dark world</address> <master>Babadi</master> <ID>#0</ID> <colour>red</colour> <side>evil</side> </Deborah> XPATH boolean(/Deborah/master/text()) OR string(/Deborah/master...

XML <Dobby> <address>Hogwartz</address> <master></master> <colour>wheatish</colour> <side>all good</side> </Dobby> XPATH boolean(/Dobby/master/text()) OR string(/Dobby/master) != '' OUTPUT false

From android 6.0 this permission needs to grant dynamically, <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/> Throwing below permission denied error on 6.0, Caused by: android.view.WindowManager$BadTokenException: Unable to add window android.view.ViewRoo...

here you can find the functions. With the table wf_example created in previous example, run: select i , dense_rank() over (order by i) , row_number() over () , rank() over (order by i) from wf_example The result is: i | dense_rank | row_number | rank ---+------------+------------+-...

library(deSolve) ## ----------------------------------------------------------------------------- ## Define R-function ## ----------------------------------------------------------------------------- LV <- function(t, y, parms) { with(as.list(c(y, parms)), { dP &l...

'use strict'; const Hapi = require('hapi'); const Joi = require('joi'); // Create a server with a host and port const server = new Hapi.Server(); server.connection({ host: 'localhost', port: 8000 }); /** * Add a route path with url param */ server.route({ method...

In WSO2 registry is a content store and a metadata repository. In WSO2 products and particularly WSO2 ESB uses registry to store metadata, artifacts (WSDL, XSD etc.,) and other service configurations like endpoints, sequences etc., Registry in WSO2 ESB has three flavours. Local registry Config...

The Maya Python interpreter works like a regular Python intepreter, so it will use the same environment variables to find importable files as any other Python 2.6 or 2.7 installation (described in more detail in the Python documentation. If there is no other python installation on your machine you ...

GCobol >>SOURCE FORMAT IS FIXED *> *************************************************************** *> Purpose: RELATIVE file organization REWRITE example *> Tectonics: cobc -g -debug -W -x relatives.cob *> *********************************************...