Tutorial by Examples: p

The PERCENTILE_DISC function lists the value of the first entry where the cumulative distribution is higher than the percentile that you provide using the numeric_literal parameter. The values are grouped by rowset or partition, as specified by the WITHIN GROUP clause. The PERCENTILE_CONT functi...

Lets following are the class definition class A def a; end end module B def b; end end class C < A include B def c; end end What are the instance methods of C? C.instance_methods # [:c, :b, :a, :to_json, :instance_of?...] What are the instance methods that declare...

var passport = require('passport'); var LocalStrategy = require('passport-local').Strategy; passport.serializeUser(function(user, done) { //In serialize user you decide what to store in the session. Here I'm storing the user id only. done(null, user.id); }); passport.deserializeUser(funct...

Haystack: The string in which given pattern needs to be searched. Needle: The pattern to be searched. Time complexity: Search portion (strstr method) has the complexity O(n) where n is the length of haystack but as needle is also pre parsed for building prefix table O(m) is required for building p...

Question: What is the output of code below and why? setTimeout(function() { console.log("A"); }, 1000); setTimeout(function() { console.log("B"); }, 0); getDataFromDatabase(function(err, data) { console.log("C"); setTimeout(function() { ...

Detailed instructions on getting nuget set up or installed.

Example Data Please try to provide a minimal example input data in a format that can be directly used by the answers without tedious and time consuming parsing for example input file or local collection with all code required to create distributed data structures. When applicable always include ty...

In your routes/index.js Here user is the model for the userSchema router.post('/login', function(req, res, next) { if (!req.body.username || !req.body.password) { return res.status(400).json({ message: 'Please fill out all fields' }); } passpor...

A common requirement for a Java application is that can be deployed by copying a single file. For simple applications that depend only on the standard Java SE class libraries, this requirement is satisfied by creating a JAR file containing all of the (compiled) application classes. Things are not ...

var providerName = "System.Data.SqlClient"; //Oracle.ManagedDataAccess.Client, IBM.Data.DB2 var connectionString = "{your-connection-string}"; //you will probably get the above two values in the ConnectionStringSettings object from .config file var factory = DbProviderFac...

Assume that I have a file named in.txt: $ cat in.txt a b a c a d I only want to replace the a\nc with deleted, but not a\nb or a\nd. $ sed -e ':loop # create a branch/label named `loop` $!{ N # append the next line of input into the pattern space /\n$/!b...

Setup Steps: Download and install jdk8. Add the following to your project’s main build.gradle buildscript { repositories { mavenCentral() } dependencies { classpath 'me.tatarka:gradle-retrolambda:3.2.3' } } Now add this to your application m...

Encyption happens by replacing each letter of the alfabet with an other letter. The keys can be showed with this circle. Here is a shift of 8 chars used. Here will the A replaced by T, B by U, C by V etc. So will next string encrypted: OriginalEncryptedHELLO WORLDAXEEH PHKEW

Decription happens by the same cicle showed in the encryption example. Example: EncryptedOriginalAXEEH PHKEWHELLO WORLD

class Person { String name; public Person(String name) { this.name = name; } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; Person person = (Person) ...

While coding a script or a function, it can be the case that one or more than one temporary file be needed in order to, for example, store some data. In order to avoid overwriting an existing file or to shadow a MATLAB function the tempname function can be used to generate a unique name for a te...

If you load your fit parameters from a file, you should declare in it all the parameters you're going to use and, when needed, initialise them. ## Start parameters for the fit of data.dat m = -0.0005 q = -0.0005 d = 1.02 Tc = 45.0 g_d = 1.0 b = 0.0100...

class Program { static void Main(string[] args) { string serverName = "INTACT-ETL"; string databaseName = "SOMEDB"; string collectionName = "TestCol"; //Build Connection string ...

Complete the Installation and setup part to connect your app to Firebase. This will create the project in Firebase. Add the dependency for Firebase Cloud Messaging to your module-level build.gradle file: dependencies { compile 'com.google.firebase:firebase-messaging:10.2.1' } ...

The basic use of fit is best explained by a simple example: f(x) = a + b*x + c*x**2 fit [-234:320][0:200] f(x) ’measured.dat’ using 1:2 skip 4 via a,b,c plot ’measured.dat’ u 1:2, f(x) Ranges may be specified to filter the data used in fitting. Out-of-range data points are ignored. (T. W...