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diff --git a/www/mostdeployed.html b/www/mostdeployed.html new file mode 100644 index 0000000..a3d2acf --- /dev/null +++ b/www/mostdeployed.html @@ -0,0 +1,190 @@ +<!DOCTYPE html> +<html><head> +<meta name="viewport" content="width=device-width, initial-scale=1.0"> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<link href="sqlite.css" rel="stylesheet"> +<title>Most Widely Deployed SQL Database Engine</title> +<!-- path= --> +</head> +<body> +<div class=nosearch> +<a href="index.html"> +<img class="logo" src="images/sqlite370_banner.gif" alt="SQLite" border="0"> +</a> +<div><!-- IE hack to prevent disappearing logo --></div> +<div class="tagline desktoponly"> +Small. Fast. Reliable.<br>Choose any three. +</div> +<div class="menu mainmenu"> +<ul> +<li><a href="index.html">Home</a> +<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a> +<li class='wideonly'><a href='about.html'>About</a> +<li class='desktoponly'><a href="docs.html">Documentation</a> +<li class='desktoponly'><a href="download.html">Download</a> +<li class='wideonly'><a href='copyright.html'>License</a> +<li class='desktoponly'><a href="support.html">Support</a> +<li class='desktoponly'><a href="prosupport.html">Purchase</a> +<li class='search' id='search_menubutton'> +<a href="javascript:void(0)" onclick='toggle_search()'>Search</a> +</ul> +</div> +<div class="menu submenu" id="submenu"> +<ul> +<li><a href='about.html'>About</a> +<li><a href='docs.html'>Documentation</a> +<li><a href='download.html'>Download</a> +<li><a href='support.html'>Support</a> +<li><a href='prosupport.html'>Purchase</a> +</ul> +</div> +<div class="searchmenu" id="searchmenu"> +<form method="GET" action="search"> +<select name="s" id="searchtype"> +<option value="d">Search Documentation</option> +<option value="c">Search Changelog</option> +</select> +<input type="text" name="q" id="searchbox" value=""> +<input type="submit" value="Go"> +</form> +</div> +</div> +<script> +function toggle_div(nm) { +var w = document.getElementById(nm); +if( w.style.display=="block" ){ +w.style.display = "none"; +}else{ +w.style.display = "block"; +} +} +function toggle_search() { +var w = document.getElementById("searchmenu"); +if( w.style.display=="block" ){ +w.style.display = "none"; +} else { +w.style.display = "block"; +setTimeout(function(){ +document.getElementById("searchbox").focus() +}, 30); +} +} +function div_off(nm){document.getElementById(nm).style.display="none";} +window.onbeforeunload = function(e){div_off("submenu");} +/* Disable the Search feature if we are not operating from CGI, since */ +/* Search is accomplished using CGI and will not work without it. */ +if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){ +document.getElementById("search_menubutton").style.display = "none"; +} +/* Used by the Hide/Show button beside syntax diagrams, to toggle the */ +function hideorshow(btn,obj){ +var x = document.getElementById(obj); +var b = document.getElementById(btn); +if( x.style.display!='none' ){ +x.style.display = 'none'; +b.innerHTML='show'; +}else{ +x.style.display = ''; +b.innerHTML='hide'; +} +return false; +} +var antiRobot = 0; +function antiRobotGo(){ +if( antiRobot!=3 ) return; +antiRobot = 7; +var j = document.getElementById("mtimelink"); +if(j && j.hasAttribute("data-href")) j.href=j.getAttribute("data-href"); +} +function antiRobotDefense(){ +document.body.onmousedown=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousedown=null; +} +document.body.onmousemove=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousemove=null; +} +setTimeout(function(){ +antiRobot |= 1; +antiRobotGo(); +}, 100) +antiRobotGo(); +} +antiRobotDefense(); +</script> + + + +<h2>Most Widely Deployed and Used Database Engine</h2> + +<p>SQLite is likely used more than all other database engines +combined. Billions and billions of copies +of SQLite exist in the wild. SQLite is found in: + +<ul> +<li>Every Android device +<li>Every iPhone and iOS device +<li>Every Mac +<li>Every Windows10 machine +<li>Every Firefox, Chrome, and Safari web browser +<li>Every instance of Skype +<li>Every instance of iTunes +<li>Every Dropbox client +<li>Every TurboTax and QuickBooks +<li>PHP and Python +<li>Most television sets and set-top cable boxes +<li>Most automotive multimedia systems +<li>Countless millions of other applications +</ul> + +<p>Since SQLite is used extensively in every smartphone, and there are +more than 4.0 billion (4.0e9) smartphones in active use, each holding +hundreds of +SQLite database files, it is seems likely that there are over one trillion +(1e12) SQLite databases in active use. + +<h2>Most Widely Deployed Software Module of Any Type?</h2> + +<p>SQLite is probably one of the top five most deployed +software modules of any description. +Other libraries with similar reach include: + +<ul> +<li> +The original <a href="http://zlib.net">zlib</a> implementation by +Jean-loup Gailly and Mark Adler. +<li> +The original reference implementation for +<a href="http://www.libpng.org">libpng</a> +<li> +Libjpeg from the <a href="http://ijg.org">Independent JPEG Group</a> +</ul> + +<p> +Libc is omitted from the above list even though +it is more common than SQLite because +libc is not a single software component but rather several +competing implementations (ex: BSD vs. GNU) with similar interfaces. +There are also independent implementations of libjpeg and libpng, +though in those cases the canonical implementations are very popular. +</p> + +<p> +Precise numbers are difficult to obtain and so exact rankings +are impossible. But our best guess is that SQLite is the second +mostly widely deployed software library, after libz. +Some commentators observe that SQLite tends +to be statically linked and thus have multiple instances on +each machine, whereas libz tends to have just +a single instance per machine in the form of a shared library or DLL. +So even though the number of devices containing libz +may be greater than the number of +devices that contain SQLite, the total number of instances per device +<em>might</em> be higher for SQLite and so SQLite <em>might</em> +be the single most widely deployed and used software component. +</p> +<p align="center"><small><i>This page last modified on <a href="https://sqlite.org/docsrc/honeypot" id="mtimelink" data-href="https://sqlite.org/docsrc/finfo/pages/mostdeployed.in?m=e39f595cab">2022-01-08 05:02:57</a> UTC </small></i></p> + |