Adding upstream version 3.40.1.upstream/3.40.1 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-05 17:28:19 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-05 17:28:19 +0000
commit: 18657a960e125336f704ea058e25c27bd3900dcb (patch)
tree: 17b438b680ed45a996d7b59951e6aa34023783f2 /www/session/sqlite3changeset_old.html
parent: Initial commit. (diff)
download: sqlite3-upstream.tar.xz
sqlite3-upstream.zip
1 files changed, 148 insertions, 0 deletions
diff --git a/www/session/sqlite3changeset_old.html b/www/session/sqlite3changeset_old.html
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+<title>Obtain old.* Values From A Changeset Iterator</title>
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+<a href="intro.html"><h2>Session Module C Interface</h2></a><h2>Obtain old.* Values From A Changeset Iterator</h2><blockquote><pre>int sqlite3changeset_old(
+  sqlite3_changeset_iter *pIter,  /* Changeset iterator */
+  int iVal,                       /* Column number */
+  sqlite3_value **ppValue         /* OUT: Old value (or NULL pointer) */
+);
+</pre></blockquote><p>
+The pIter argument passed to this function may either be an iterator
+passed to a conflict-handler by <a href="../session/sqlite3changeset_apply.html">sqlite3changeset_apply()</a>, or an iterator
+created by <a href="../session/sqlite3changeset_start.html">sqlite3changeset_start()</a>. In the latter case, the most recent
+call to <a href="../session/sqlite3changeset_next.html">sqlite3changeset_next()</a> must have returned SQLITE_ROW. 
+Furthermore, it may only be called if the type of change that the iterator
+currently points to is either <a href="../c3ref/c_alter_table.html">SQLITE_DELETE</a> or <a href="../c3ref/c_alter_table.html">SQLITE_UPDATE</a>. Otherwise,
+this function returns <a href="../rescode.html#misuse">SQLITE_MISUSE</a> and sets *ppValue to NULL.</p>
+
+<p>Argument iVal must be greater than or equal to 0, and less than the number
+of columns in the table affected by the current change. Otherwise,
+<a href="../rescode.html#range">SQLITE_RANGE</a> is returned and *ppValue is set to NULL.</p>
+
+<p>If successful, this function sets *ppValue to point to a protected
+sqlite3_value object containing the iVal'th value from the vector of 
+original row values stored as part of the UPDATE or DELETE change and
+returns SQLITE_OK. The name of the function comes from the fact that this 
+is similar to the "old.*" columns available to update or delete triggers.</p>
+
+<p>If some other error occurs (e.g. an OOM condition), an SQLite error code
+is returned and *ppValue is set to NULL.
+</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>
+
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-05 17:28:19 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-05 17:28:19 +0000
commit	18657a960e125336f704ea058e25c27bd3900dcb (patch)
tree	17b438b680ed45a996d7b59951e6aa34023783f2 /www/session/sqlite3changeset_old.html
parent	Initial commit. (diff)
download	sqlite3-upstream.tar.xz sqlite3-upstream.zip