Alessandro Bonazzi 5c7aa8c1c0 Patch level : 12.0 no-patch
Files correlati     :
Commento            :

Aggiunta documentazione di sqlite 3
2020-11-29 00:32:36 +01:00

158 lines
6.8 KiB
HTML

<!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>SQLite Release 3.7.16 On 2013-03-18</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;
}
</script>
</div>
<h2>SQLite Release 3.7.16 On 2013-03-18</h2><p><ol class='lessindent'>
<li>Added the <a href="../pragma.html#pragma_foreign_key_check">PRAGMA foreign_key_check</a> command.
<li>Added new extended error codes for all SQLITE_CONSTRAINT errors
<li>Added the SQLITE_READONLY_ROLLBACK extended error code for when a database
cannot be opened because it needs rollback recovery but is read-only.
<li>Added SQL functions <a href="../lang_corefunc.html#unicode">unicode(A)</a> and <a href="../lang_corefunc.html#char">char(X1,...,XN)</a>.
<li>Performance improvements for <a href="../pragma.html#pragma_incremental_vacuum">PRAGMA incremental_vacuum</a>, especially in
cases where the number of free pages is greater than what will fit on a
single trunk page of the freelist.
<li>Improved optimization of queries containing aggregate min() or max().
<li>Enhance virtual tables so that they can potentially use an index when
the WHERE clause contains the IN operator.
<li>Allow indices to be used for sorting even if prior terms of the index
are constrained by IN operators in the WHERE clause.
<li>Enhance the <a href="../pragma.html#pragma_table_info">PRAGMA table_info</a> command so that the "pk" column is an
increasing integer to show the order of columns in the primary key.
<li>Enhance the query optimizer to exploit transitive join constraints.
<li>Performance improvements in the query optimizer.
<li>Allow the error message from <a href="../pragma.html#pragma_integrity_check">PRAGMA integrity_check</a> to be longer than
20000 bytes.
<li>Improved name resolution for deeply nested queries.
<li>Added the test_regexp.c module as a demonstration of how to implement
the REGEXP operator.
<li>Improved error messages in the <a href="../rtree.html">RTREE</a> extension.
<li>Enhance the <a href="../cli.html">command-line shell</a> so that a non-zero argument to the
".exit" command causes the shell to exit immediately without cleanly
shutting down the database connection.
<li>Improved error messages for invalid boolean arguments to dot-commands
in the <a href="../cli.html">command-line shell</a>.
<li>Improved error messages for "foreign key mismatch" showing the names of
the two tables involved.
<li>Remove all uses of umask() in the unix VFS.
<li>Added the <a href="../pragma.html#pragma_vdbe_addoptrace">PRAGMA vdbe_addoptrace</a> and <a href="../pragma.html#pragma_vdbe_debug">PRAGMA vdbe_debug</a> commands.
<li>Change to use strncmp() or the equivalent instead of memcmp() when
comparing non-zero-terminated strings.
<li>Update cygwin interfaces to omit deprecated API calls.
<li>Enhance the <a href="../spellfix1.html">spellfix1</a> extension so that the edit distance cost table can
be changed at runtime by inserting a string like 'edit_cost_table=TABLE'
into the "command" field.
<li>Bug fix: repair a long-standing problem that could cause incorrect query
results in a 3-way or larger join that compared INTEGER fields against TEXT
fields in two or more places.
Ticket <a href="http://www.sqlite.org/src/info/fc7bd6358f">fc7bd6358f</a>
<li>Bug fix: Issue an error message if the 16-bit reference counter on a
view overflows due to an overly complex query.
<li>Bug fix: Avoid leaking memory on LIMIT and OFFSET clauses in deeply
nested UNION ALL queries.
<li>Bug fix: Make sure the schema is up-to-date prior to running pragmas
table_info, index_list, index_info, and foreign_key_list.
<li>SQLITE_SOURCE_ID:
"2013-03-18 11:39:23 66d5f2b76750f3520eb7a495f6247206758f5b90"
<li>SHA1 for sqlite3.c: 7308ab891ca1b2ebc596025cfe4dc36f1ee89cf6
</ol></p>
<p>A <a href="../changes.html">complete list of SQLite releases</a>
in a single page and a <a href="../chronology.html">chronology</a> are both also available.
A detailed history of every
check-in is available at
<a href="http://www.sqlite.org/src/timeline">
SQLite version control site</a>.</p>