dodyg

#Intro

Kotlin is a new programming language for the JVM. It produces Java bytecode, supports Android and generates JavaScript. The latest version of the language is Kotlin M5.3

Kotlin project website is at kotlin.jetbrains.org.

All the codes here can be copied and run on Kotlin online editor.

Let's get started.

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

apolloclark

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

praveenkumar

#
# Recommended minimum configuration:
#

# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed

# Auth
auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid/squid_passwd

amanurat

package pl.kpob.utils.extensions

import android.app.Activity
import android.content.Context
import android.graphics.Color
import android.support.v4.content.ContextCompat
import android.view.WindowManager
import flow.Flow
import org.jetbrains.anko.AlertDialogBuilder
import pl.sisms.gminformix.utils.extensions.supportsLollipop

benschwarz

Apps

• Postico client for mac
• pgcli - Postgres CLI with autocompletion and syntax highlighting
• pghero - Server and query performance dashboard

Tools

• PEV - Query planning / Explain analyze visualisation
• PostgreSQL's explain analyze made readable

jaydenseric

Run each of the following lines, replacing yourdomain.com and codehere with your details:

now dns add yourdomain.com @ TXT google-site-verification=codehere
now dns add yourdomain.com @ MX ASPMX.L.GOOGLE.COM 1
now dns add yourdomain.com @ MX ALT1.ASPMX.L.GOOGLE.COM 5
now dns add yourdomain.com @ MX ALT2.ASPMX.L.GOOGLE.COM 5
now dns add yourdomain.com @ MX ALT3.ASPMX.L.GOOGLE.COM 10
now dns add yourdomain.com @ MX ALT4.ASPMX.L.GOOGLE.COM 10

tpb1908

package com.tpb.brainfuck

import android.support.design.widget.FloatingActionButton
import android.support.v7.widget.RecyclerView
import android.text.Editable
import android.text.TextWatcher
import android.util.Log
import android.widget.TextView

/**

tinmegali

@Database(entities = arrayOf(Note::class, User::class), version = 1)
@TypeConverters(Converters::class)
abstract class AppDatabse : RoomDatabase() {

    abstract fun userDAO(): UserDAO
    abstract fun noteDAO(): NoteDAO

}

topeterhonz

package peterho.kotlintipstricks

import android.content.Context
import android.support.annotation.AttrRes
import android.support.annotation.StyleRes
import android.support.v4.app.Fragment
import android.support.v4.app.FragmentManager
import android.support.v7.app.AlertDialog
import android.support.v7.widget.RecyclerView
import android.text.TextUtils