summaryrefslogtreecommitdiffstats
path: root/doc/src/sgml/ref/close.sgml
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--doc/src/sgml/ref/close.sgml132
1 files changed, 132 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/close.sgml b/doc/src/sgml/ref/close.sgml
new file mode 100644
index 0000000..32d20ed
--- /dev/null
+++ b/doc/src/sgml/ref/close.sgml
@@ -0,0 +1,132 @@
+<!--
+doc/src/sgml/ref/close.sgml
+PostgreSQL documentation
+-->
+
+<refentry id="sql-close">
+ <indexterm zone="sql-close">
+ <primary>CLOSE</primary>
+ </indexterm>
+
+ <indexterm zone="sql-close">
+ <primary>cursor</primary>
+ <secondary>CLOSE</secondary>
+ </indexterm>
+
+ <refmeta>
+ <refentrytitle>CLOSE</refentrytitle>
+ <manvolnum>7</manvolnum>
+ <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+ <refname>CLOSE</refname>
+ <refpurpose>close a cursor</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+<synopsis>
+CLOSE { <replaceable class="parameter">name</replaceable> | ALL }
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+
+ <para>
+ <command>CLOSE</command> frees the resources associated with an open cursor.
+ After the cursor is closed, no subsequent operations
+ are allowed on it. A cursor should be closed when it is
+ no longer needed.
+ </para>
+
+ <para>
+ Every non-holdable open cursor is implicitly closed when a
+ transaction is terminated by <command>COMMIT</command> or
+ <command>ROLLBACK</command>. A holdable cursor is implicitly
+ closed if the transaction that created it aborts via
+ <command>ROLLBACK</command>. If the creating transaction
+ successfully commits, the holdable cursor remains open until an
+ explicit <command>CLOSE</command> is executed, or the client
+ disconnects.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Parameters</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><replaceable class="parameter">name</replaceable></term>
+ <listitem>
+ <para>
+ The name of an open cursor to close.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><literal>ALL</literal></term>
+ <listitem>
+ <para>
+ Close all open cursors.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>
+ <productname>PostgreSQL</productname> does not have an explicit
+ <command>OPEN</command> cursor statement; a cursor is considered
+ open when it is declared. Use the
+ <link linkend="sql-declare"><command>DECLARE</command></link>
+ statement to declare a cursor.
+ </para>
+
+ <para>
+ You can see all available cursors by querying the <link
+ linkend="view-pg-cursors"><structname>pg_cursors</structname></link> system view.
+ </para>
+
+ <para>
+ If a cursor is closed after a savepoint which is later rolled back,
+ the <command>CLOSE</command> is not rolled back; that is, the cursor
+ remains closed.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>Examples</title>
+
+ <para>
+ Close the cursor <literal>liahona</literal>:
+<programlisting>
+CLOSE liahona;
+</programlisting></para>
+ </refsect1>
+
+ <refsect1>
+ <title>Compatibility</title>
+
+ <para>
+ <command>CLOSE</command> is fully conforming with the SQL
+ standard. <command>CLOSE ALL</command> is a <productname>PostgreSQL</productname>
+ extension.
+ </para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+
+ <simplelist type="inline">
+ <member><xref linkend="sql-declare"/></member>
+ <member><xref linkend="sql-fetch"/></member>
+ <member><xref linkend="sql-move"/></member>
+ </simplelist>
+ </refsect1>
+</refentry>