Adding upstream version 3.45.1.upstream/3.45.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-13 14:07:11 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-13 14:07:11 +0000
commit: 63847496f14c813a5d80efd5b7de0f1294ffe1e3 (patch)
tree: 01c7571c7c762ceee70638549a99834fdd7c411b /www/c3ref/expanded_sql.html
parent: Initial commit. (diff)
download: sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.tar.xz
sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.zip
1 files changed, 171 insertions, 0 deletions
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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>Retrieving Statement SQL</title>
+<!-- path=../ -->
+</head>
+<body>
+<div class=nosearch>
+<a href="../index.html">
+<img class="logo" src="../images/sqlite370_banner.gif" alt="SQLite" border="0">
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+w.style.display = "block";
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+/* Search is accomplished using CGI and will not work without it. */
+if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){
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+/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
+function hideorshow(btn,obj){
+var x = document.getElementById(obj);
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+<!-- keywords: sqlite3_expanded_sql sqlite3_normalized_sql sqlite3_sql -->
+<div class=nosearch>
+<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
+<h2>Retrieving Statement SQL</h2>
+</div>
+<blockquote><pre>
+const char *sqlite3_sql(sqlite3_stmt *pStmt);
+char *sqlite3_expanded_sql(sqlite3_stmt *pStmt);
+#ifdef SQLITE_ENABLE_NORMALIZE
+const char *sqlite3_normalized_sql(sqlite3_stmt *pStmt);
+#endif
+</pre></blockquote>
+<p>
+The sqlite3_sql(P) interface returns a pointer to a copy of the UTF-8
+SQL text used to create <a href="../c3ref/stmt.html">prepared statement</a> P if P was
+created by <a href="../c3ref/prepare.html">sqlite3_prepare_v2()</a>, <a href="../c3ref/prepare.html">sqlite3_prepare_v3()</a>,
+<a href="../c3ref/prepare.html">sqlite3_prepare16_v2()</a>, or <a href="../c3ref/prepare.html">sqlite3_prepare16_v3()</a>.
+The sqlite3_expanded_sql(P) interface returns a pointer to a UTF-8
+string containing the SQL text of prepared statement P with
+<a href="../lang_expr.html#varparam">bound parameters</a> expanded.
+The sqlite3_normalized_sql(P) interface returns a pointer to a UTF-8
+string containing the normalized SQL text of prepared statement P.  The
+semantics used to normalize a SQL statement are unspecified and subject
+to change.  At a minimum, literal values will be replaced with suitable
+placeholders.</p>
+
+<p>For example, if a prepared statement is created using the SQL
+text "SELECT $abc,:xyz" and if parameter $abc is bound to integer 2345
+and parameter :xyz is unbound, then sqlite3_sql() will return
+the original string, "SELECT $abc,:xyz" but sqlite3_expanded_sql()
+will return "SELECT 2345,NULL".</p>
+
+<p>The sqlite3_expanded_sql() interface returns NULL if insufficient memory
+is available to hold the result, or if the result would exceed the
+the maximum string length determined by the <a href="../c3ref/c_limit_attached.html#sqlitelimitlength">SQLITE_LIMIT_LENGTH</a>.</p>
+
+<p>The <a href="../compile.html#trace_size_limit">SQLITE_TRACE_SIZE_LIMIT</a> compile-time option limits the size of
+bound parameter expansions.  The <a href="../compile.html#omit_trace">SQLITE_OMIT_TRACE</a> compile-time
+option causes sqlite3_expanded_sql() to always return NULL.</p>
+
+<p>The strings returned by sqlite3_sql(P) and sqlite3_normalized_sql(P)
+are managed by SQLite and are automatically freed when the prepared
+statement is finalized.
+The string returned by sqlite3_expanded_sql(P), on the other hand,
+is obtained from <a href="../c3ref/free.html">sqlite3_malloc()</a> and must be freed by the application
+by passing it to <a href="../c3ref/free.html">sqlite3_free()</a>.</p>
+
+<p>The sqlite3_normalized_sql() interface is only available if
+the <a href="../compile.html#enable_normalize">SQLITE_ENABLE_NORMALIZE</a> compile-time option is defined.
+</p><p>See also lists of
+  <a href="../c3ref/objlist.html">Objects</a>,
+  <a href="../c3ref/constlist.html">Constants</a>, and
+  <a href="../c3ref/funclist.html">Functions</a>.</p>
+
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-13 14:07:11 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-13 14:07:11 +0000
commit	63847496f14c813a5d80efd5b7de0f1294ffe1e3 (patch)
tree	01c7571c7c762ceee70638549a99834fdd7c411b /www/c3ref/expanded_sql.html
parent	Initial commit. (diff)
download	sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.tar.xz sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.zip