144 lines
4.5 KiB
HTML
144 lines
4.5 KiB
HTML
<!DOCTYPE html>
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<html><head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<link href="sqlite.css" rel="stylesheet">
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<title>SQLite: Single File Database</title>
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<!-- path= -->
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</head>
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<body>
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<div class=nosearch>
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<a href="index.html">
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<img class="logo" src="images/sqlite370_banner.gif" alt="SQLite" border="0">
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</a>
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<div><!-- IE hack to prevent disappearing logo --></div>
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<div class="tagline desktoponly">
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Small. Fast. Reliable.<br>Choose any three.
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</div>
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<div class="menu mainmenu">
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<ul>
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<li><a href="index.html">Home</a>
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<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
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<li class='wideonly'><a href='about.html'>About</a>
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<li class='desktoponly'><a href="docs.html">Documentation</a>
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<li class='search' id='search_menubutton'>
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<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
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</ul>
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</div>
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<div class="menu submenu" id="submenu">
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<ul>
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<li><a href='about.html'>About</a>
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<li><a href='docs.html'>Documentation</a>
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<li><a href='download.html'>Download</a>
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<li><a href='support.html'>Support</a>
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<li><a href='prosupport.html'>Purchase</a>
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</ul>
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<div class="searchmenu" id="searchmenu">
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<form method="GET" action="search">
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<select name="s" id="searchtype">
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<option value="d">Search Documentation</option>
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<option value="c">Search Changelog</option>
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</select>
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<input type="text" name="q" id="searchbox" value="">
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<input type="submit" value="Go">
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</form>
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</div>
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<script>
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var w = document.getElementById(nm);
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setTimeout(function(){
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document.getElementById("searchbox").focus()
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}, 30);
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}
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}
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function div_off(nm){document.getElementById(nm).style.display="none";}
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window.onbeforeunload = function(e){div_off("submenu");}
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/* Disable the Search feature if we are not operating from CGI, since */
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/* Search is accomplished using CGI and will not work without it. */
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if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){
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document.getElementById("search_menubutton").style.display = "none";
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}
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}
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return false;
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}
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</script>
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</div>
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<h2>Single-file Cross-platform Database</h2>
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<p>
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A database in SQLite is a single disk file¹.
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Furthermore, the <a href="fileformat2.html">file format</a> is cross-platform.
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A database that is created on one machine can be
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copied and used on a different machine with
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a different architecture. SQLite databases
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are portable across 32-bit and 64-bit machines
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and between
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<a href="http://en.wikipedia.org/wiki/Endianness">big-endian</a> and
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<a href="http://en.wikipedia.org/wiki/Endianness">little-endian</a>
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architectures.
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</p>
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<p>
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The SQLite database file format is also stable.
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All releases of SQLite version 3 can read and write database
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files created by the very first SQLite 3 release (version 3.0.0)
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going back to 2004-06-18. This is "backwards compatibility".
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The developers promise to maintain backwards compatibility of
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the database file format for all future releases of SQLite 3.
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"Forwards compatibility" means that older releases
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of SQLite can also read and write databases created by newer
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releases. SQLite is usually, but not completely forwards
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compatible.
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</p>
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<p>
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The stability of the SQLite database file format and the fact
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that the file format is cross-platform combine to make SQLite
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database files an excellent choice as an
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<a href="appfileformat.html">Application File Format</a>.
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The US Library Of Congress acknowledges this by listing SQLite
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as a <a href="locrsf.html">recommended storage format</a> for long-term preservation of
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digital content.
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</p>
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</p>
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<hr>
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<div style='font-size: 75%;'>
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<p>Notes:
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<ol>
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<li>Temporary journal files are created as part of transaction control,
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but those extra files are not part of the steady-state database.
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</ol>
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</div>
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