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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> |