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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
commit18657a960e125336f704ea058e25c27bd3900dcb (patch)
tree17b438b680ed45a996d7b59951e6aa34023783f2 /www/c3ref/exec.html
parentInitial commit. (diff)
downloadsqlite3-upstream.tar.xz
sqlite3-upstream.zip
Adding upstream version 3.40.1.upstream/3.40.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!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>One-Step Query Execution Interface</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>
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+</ul>
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+<div class="menu submenu" id="submenu">
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+<li><a href='../prosupport.html'>Purchase</a>
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+</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">
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+</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";
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+}
+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';
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+x.style.display = '';
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+function antiRobotGo(){
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+function antiRobotDefense(){
+document.body.onmousedown=function(){
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+</script>
+<!-- keywords: sqlite3_exec -->
+<div class=nosearch>
+<a href="intro.html"><h2>SQLite C Interface</h2></a>
+<h2>One-Step Query Execution Interface</h2>
+</div>
+<blockquote><pre>
+int sqlite3_exec(
+ sqlite3*, /* An open database */
+ const char *sql, /* SQL to be evaluated */
+ int (*callback)(void*,int,char**,char**), /* Callback function */
+ void *, /* 1st argument to callback */
+ char **errmsg /* Error msg written here */
+);
+</pre></blockquote>
+<p>
+The sqlite3_exec() interface is a convenience wrapper around
+<a href="../c3ref/prepare.html">sqlite3_prepare_v2()</a>, <a href="../c3ref/step.html">sqlite3_step()</a>, and <a href="../c3ref/finalize.html">sqlite3_finalize()</a>,
+that allows an application to run multiple statements of SQL
+without having to use a lot of C code.</p>
+
+<p>The sqlite3_exec() interface runs zero or more UTF-8 encoded,
+semicolon-separate SQL statements passed into its 2nd argument,
+in the context of the <a href="../c3ref/sqlite3.html">database connection</a> passed in as its 1st
+argument. If the callback function of the 3rd argument to
+sqlite3_exec() is not NULL, then it is invoked for each result row
+coming out of the evaluated SQL statements. The 4th argument to
+sqlite3_exec() is relayed through to the 1st argument of each
+callback invocation. If the callback pointer to sqlite3_exec()
+is NULL, then no callback is ever invoked and result rows are
+ignored.</p>
+
+<p>If an error occurs while evaluating the SQL statements passed into
+sqlite3_exec(), then execution of the current statement stops and
+subsequent statements are skipped. If the 5th parameter to sqlite3_exec()
+is not NULL then any error message is written into memory obtained
+from <a href="../c3ref/free.html">sqlite3_malloc()</a> and passed back through the 5th parameter.
+To avoid memory leaks, the application should invoke <a href="../c3ref/free.html">sqlite3_free()</a>
+on error message strings returned through the 5th parameter of
+sqlite3_exec() after the error message string is no longer needed.
+If the 5th parameter to sqlite3_exec() is not NULL and no errors
+occur, then sqlite3_exec() sets the pointer in its 5th parameter to
+NULL before returning.</p>
+
+<p>If an sqlite3_exec() callback returns non-zero, the sqlite3_exec()
+routine returns SQLITE_ABORT without invoking the callback again and
+without running any subsequent SQL statements.</p>
+
+<p>The 2nd argument to the sqlite3_exec() callback function is the
+number of columns in the result. The 3rd argument to the sqlite3_exec()
+callback is an array of pointers to strings obtained as if from
+<a href="../c3ref/column_blob.html">sqlite3_column_text()</a>, one for each column. If an element of a
+result row is NULL then the corresponding string pointer for the
+sqlite3_exec() callback is a NULL pointer. The 4th argument to the
+sqlite3_exec() callback is an array of pointers to strings where each
+entry represents the name of corresponding result column as obtained
+from <a href="../c3ref/column_name.html">sqlite3_column_name()</a>.</p>
+
+<p>If the 2nd parameter to sqlite3_exec() is a NULL pointer, a pointer
+to an empty string, or a pointer that contains only whitespace and/or
+SQL comments, then no SQL statements are evaluated and the database
+is not changed.</p>
+
+<p>Restrictions:</p>
+
+<p><ul>
+<li> The application must ensure that the 1st parameter to sqlite3_exec()
+is a valid and open <a href="../c3ref/sqlite3.html">database connection</a>.
+<li> The application must not close the <a href="../c3ref/sqlite3.html">database connection</a> specified by
+the 1st parameter to sqlite3_exec() while sqlite3_exec() is running.
+<li> The application must not modify the SQL statement text passed into
+the 2nd parameter of sqlite3_exec() while sqlite3_exec() is running.
+</ul>
+</p><p>See also lists of
+ <a href="objlist.html">Objects</a>,
+ <a href="constlist.html">Constants</a>, and
+ <a href="funclist.html">Functions</a>.</p>
+
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