PostgreSQL CASE Statements & Examples using WHEN-THEN, if-else and switch | DataCamp

SQL

@mvieira

MySQL MULTIPLES INNER JOIN How to Use EXISTS, UNIQUE, DISTINCT, and OVERLAPS in SQL Statements - dummies postgresql - SQL OVERLAPS PostgreSQL Joins: Inner, Outer, Left, Right, Natural with Examples PostgreSQL Joins: A Visual Explanation of PostgreSQL Joins PL/pgSQL Variables ( Format Dates ) The Ultimate Guide to PostgreSQL Date By Examples Data Type Formatting Functions PostgreSQL - How to calculate difference between two timestamps? | TablePlus Date/Time Functions and Operators PostgreSQL - DATEDIFF - Datetime Difference in Seconds, Days, Months, Weeks etc - SQLines CASE Statements in PostgreSQL - DataCamp SQL Optimizations in PostgreSQL: IN vs EXISTS vs ANY/ALL vs JOIN PostgreSQL DESCRIBE TABLE Quick and best way to Compare Two Tables in SQL - DWgeek.com sql - Best way to select random rows PostgreSQL - Stack Overflow PostgreSQL: Documentation: 13: 70.1. Row Estimation Examples Faster PostgreSQL Counting How to Add a Default Value to a Column in PostgreSQL - PopSQL How to Add a Default Value to a Column in PostgreSQL - PopSQL SQL Subquery - Dofactory SQL IN - SQL NOT IN - JournalDev DROP FUNCTION (Transact-SQL) - SQL Server | Microsoft Docs SQL : Multiple Row and Column Subqueries - w3resource PostgreSQL: Documentation: 9.5: CREATE FUNCTION PostgreSQL CREATE FUNCTION By Practical Examples datetime - PHP Sort a multidimensional array by element containing date - Stack Overflow database - Oracle order NULL LAST by default - Stack Overflow PostgreSQL: Documentation: 9.5: Modifying Tables PostgreSQL: Documentation: 14: SELECT postgresql - sql ORDER BY multiple values in specific order? - Stack Overflow How do I get the current unix timestamp from PostgreSQL? - Database Administrators Stack Exchange SQL MAX() with HAVING, WHERE, IN - w3resource linux - Which version of PostgreSQL am I running? - Stack Overflow Copying Data Between Tables in a Postgres Database php - How to remove all numbers from string? - Stack Overflow sql - How to get a list column names and datatypes of a table in PostgreSQL? - Stack Overflow postgresql - How do I remove all spaces from a field in a Postgres database in an update query? - Stack Overflow sql - How to get a list column names and datatypes of a table in PostgreSQL? - Stack Overflow How to change PRIMARY KEY of an existing PostgreSQL table? · GitHub Drop tables w Dependency Tracking ( constraints ) Import CSV File Into PosgreSQL Table How To Import a CSV into a PostgreSQL Database How can I drop all the tables in a PostgreSQL database? - Stack Overflow How can I drop all the tables in a PostgreSQL database? - Stack Overflow PostgreSQL CASE Statements & Examples using WHEN-THEN, if-else and switch | DataCamp PostgreSQL LEFT: Get First N Characters in a String How can I drop all the tables in a PostgreSQL database? - Stack Overflow How can I drop all the tables in a PostgreSQL database? - Stack Overflow PostgreSQL - Copy Table - GeeksforGeeks PostgreSQL BETWEEN Query with Example sql - Postgres Query: finding values that are not numbers - Stack Overflow PostgreSQL UPDATE Join with A Practical Example

PostgreSQL

@mvieira

PostgreSQL POSITION() function PostgresQL ANY / SOME Operator ( IN vs ANY ) PostgreSQL Substring - Extracting a substring from a String How to add an auto-incrementing primary key to an existing table, in PostgreSQL PostgreSQL STRING_TO_ARRAY()function mysql FIND_IN_SET equivalent to postgresql PL/pgSQL Variables ( Format Dates ) The Ultimate Guide to PostgreSQL Date By Examples Data Type Formatting Functions PostgreSQL - How to calculate difference between two timestamps? | TablePlus Date/Time Functions and Operators PostgreSQL - DATEDIFF - Datetime Difference in Seconds, Days, Months, Weeks etc - SQLines CASE Statements in PostgreSQL - DataCamp SQL Optimizations in PostgreSQL: IN vs EXISTS vs ANY/ALL vs JOIN PL/pgSQL Variables PostgreSQL: Documentation: 11: CREATE PROCEDURE Reading a Postgres EXPLAIN ANALYZE Query Plan Faster PostgreSQL Counting sql - Fast way to discover the row count of a table in PostgreSQL - Stack Overflow PostgreSQL: Documentation: 9.1: tablefunc PostgreSQL DESCRIBE TABLE Quick and best way to Compare Two Tables in SQL - DWgeek.com sql - Best way to select random rows PostgreSQL - Stack Overflow How to Add a Default Value to a Column in PostgreSQL - PopSQL How to Add a Default Value to a Column in PostgreSQL - PopSQL PL/pgSQL IF Statement PostgreSQL: Documentation: 9.1: Declarations SQL Subquery - Dofactory SQL IN - SQL NOT IN - JournalDev PostgreSQL - IF Statement - GeeksforGeeks How to work with control structures in PostgreSQL stored procedures: Using IF, CASE, and LOOP statements | EDB PL/pgSQL IF Statement How to combine multiple selects in one query - Databases - ( loop reference ) DROP FUNCTION (Transact-SQL) - SQL Server | Microsoft Docs SQL : Multiple Row and Column Subqueries - w3resource PostgreSQL: Documentation: 9.5: CREATE FUNCTION PostgreSQL CREATE FUNCTION By Practical Examples datetime - PHP Sort a multidimensional array by element containing date - Stack Overflow database - Oracle order NULL LAST by default - Stack Overflow PostgreSQL: Documentation: 9.5: Modifying Tables PostgreSQL: Documentation: 14: SELECT PostgreSQL Array: The ANY and Contains trick - Postgres OnLine Journal postgresql - sql ORDER BY multiple values in specific order? - Stack Overflow sql - How to aggregate two PostgreSQL columns to an array separated by brackets - Stack Overflow How do I get the current unix timestamp from PostgreSQL? - Database Administrators Stack Exchange SQL MAX() with HAVING, WHERE, IN - w3resource linux - Which version of PostgreSQL am I running? - Stack Overflow Postgres login: How to log into a Postgresql database | alvinalexander.com Copying Data Between Tables in a Postgres Database PostgreSQL CREATE FUNCTION By Practical Examples php - How to remove all numbers from string? - Stack Overflow sql - How to get a list column names and datatypes of a table in PostgreSQL? - Stack Overflow postgresql - How do I remove all spaces from a field in a Postgres database in an update query? - Stack Overflow sql - How to get a list column names and datatypes of a table in PostgreSQL? - Stack Overflow A Step-by-Step Guide To PostgreSQL Temporary Table How to change PRIMARY KEY of an existing PostgreSQL table? · GitHub PostgreSQL UPDATE Join with A Practical Example PostgreSQL: Documentation: 15: CREATE SEQUENCE How can I drop all the tables in a PostgreSQL database? - Stack Overflow PostgreSQL Show Tables Drop tables w Dependency Tracking ( constraints ) Import CSV File Into PosgreSQL Table How To Import a CSV into a PostgreSQL Database How can I drop all the tables in a PostgreSQL database? - Stack Overflow How can I drop all the tables in a PostgreSQL database? - Stack Overflow PostgreSQL CASE Statements & Examples using WHEN-THEN, if-else and switch | DataCamp PostgreSQL LEFT: Get First N Characters in a String How can I drop all the tables in a PostgreSQL database? - Stack Overflow How can I drop all the tables in a PostgreSQL database? - Stack Overflow postgresql - Binary path in the pgAdmin preferences - Database Administrators Stack Exchange postgresql - Binary path in the pgAdmin preferences - Database Administrators Stack Exchange PostgreSQL - Copy Table - GeeksforGeeks postgresql duplicate key violates unique constraint - Stack Overflow PostgreSQL BETWEEN Query with Example VACUUM FULL - PostgreSQL wiki How To Remove Spaces Between Characters In PostgreSQL? - Database Administrators Stack Exchange sql - Postgres Query: finding values that are not numbers - Stack Overflow PostgreSQL LEFT: Get First N Characters in a String unaccent: Getting rid of umlauts, accents and special characters

#html #javascript #nodejs

How to Save HTML Form Data in JSON - Express

<form action="/new" method="post">
 
  <input name="title" type="text">
  <input name="description" type="text">
  <button type="submit">Submit Form</button>
 
</form>

> More steps

#javascript

Get URL and URL Parts in JavaScript

var newURL = window.location.protocol + "//" + window.location.host + "/" + window.location.pathname + window.location.search

#javascript

Add event listener to multiple buttons with the same class

    btns = document.getElementsByClassName("saveBtn");
    for (var i = 0; i < btns.length; i++) {
        btns[i].addEventListener("click", function () {
			//Add function here
        });
    }

#javascript

Replace Textarea with Codemirror editor

<link rel="stylesheet" type="text/css" href="plugin/codemirror/lib/codemirror.css">

<body>
	<textarea class="codemirror-textarea"></textarea>
</body>

<script>

$(document).ready(function(){
    var codeText = $(".codemirror-textarea")[0];
    var editor = CodeMirror.fromTextArea(codeText, {
        lineNumbers : true
    });
});

</script>

<script type="text/javascript" src="plugin/codemirror/lib/codemirror.js"></script>

#javascript #nodejs #commandline

HTTPS Redirect in Nodejs

npm install heroku-ssl-redirect

> More steps

#javascript #nodejs

Save to MongoDB without Duplicates Using Mongoose

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

const exampleSchema = new Schema({
    title: { type: String , required: true},
    content: [{type: String}]
});


var Example = mongoose.model('Example', exampleSchema);
module.exports = Example;

> More steps

#html #javascript #jsfunctions #dom #dommanipulation

getAttribute() - how to get the value of any attribute of HTML element

<html>

<input id="contact" name="address">

<script>

    var x = document.getElementById("contact").getAttribute('name');

</script>

</html>

#javascript

Full Stack Developer

function full_stack_developer() {
    full_stack_developer();
}

#javascript

3 Ways To Detect Selenium Bots Using Javascript - CodingTutz

if (navigator.webdriver) {
    document.body.innerHTML = "This is a Bot";
}

#javascript #promises #howto

How to Get the Domain From A URL Using Javascript

var url = "http://scratch99.com/web-development/javascript/";
var urlParts = url.replace('http://','').replace('https://','').split(/[/?#]/);
var domain = urlParts[0];

#javascript #javascript #functions #parameters

Required Parameters for Functions in JavaScript

 const isRequired = () => { throw new Error('param is required'); };

const hello = (name = isRequired()) => { console.log(`hello ${name}`) };

// These will throw errors
hello();
hello(undefined);

// These will not
hello(null);
hello('David');
The idea here is that it uses default parameters, like how the b parameter here has a default if you don’t send it anything:
function multiply(a, b = 1) {
  return a * b;
}

#javascript

Mapping an Object

const object1 = {
  a: 'somestring',
  b: 42
};

for (let [key, value] of Object.entries(object1)) {
  console.log(`${key}: ${value}`);
}

#javascript

Copy Text to Clipboard with Line Breaks

function copyToClipboard(){

    var codeToBeCopied = document.getElementById('code-snippet').innerText;
    var emptyArea = document.createElement('TEXTAREA');
    emptyArea.innerHTML = codeToBeCopied;
    const parentElement = document.getElementById('post-title');
    parentElement.appendChild(emptyArea);

    emptyArea.select();
    document.execCommand('copy');

    parentElement.removeChild(emptyArea);
    M.toast({html: 'Code copied to clipboard'})

    }

#javascript

How to store fetch response in javascript variable - Stack Overflow

async function fun() {
  return fetch('https://jsonplaceholder.typicode.com/todos/1').then(res => res.json());
}

const data  = await fun();

#javascript #jquery

jQuery.post() - AJAX for post requests

$.ajax({
  type: "POST",
  url: url,
  data: data,
  success: success,
  dataType: dataType
});

PostgreSQL CASE Statements & Examples using WHEN-THEN, if-else and switch | DataCamp

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