-
Notifications
You must be signed in to change notification settings - Fork 111
Expand file tree
/
Copy pathpg-last-oid.xml
More file actions
executable file
·131 lines (122 loc) · 3.68 KB
/
Copy pathpg-last-oid.xml
File metadata and controls
executable file
·131 lines (122 loc) · 3.68 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: c2eca73ef79ebe78cebb34053e41b565af504c4f Maintainer: dallas Status: ready -->
<!-- CREDITS: mowangjuanzi -->
<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.82 -->
<refentry xml:id="function.pg-last-oid" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>pg_last_oid</refname>
<refpurpose>返回上一条记录的 oid</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>string</type><type>int</type><type>false</type></type><methodname>pg_last_oid</methodname>
<methodparam><type>PgSql\Result</type><parameter>result</parameter></methodparam>
</methodsynopsis>
<para>
<function>pg_last_oid</function> 用于检索分配给插入行的 <varname>OID</varname>。
</para>
<para>
从 PostgreSQL 7.2 开始 OID 字段成为可选项,在 PostgreSQL 8.1 中默认不存在。如果表中没有定义 OID 字段,程序员必须用
<function>pg_result_status</function> 检查记录是否成功插入。
</para>
<para>
要在插入的行中获取 <literal>SERIAL</literal> 字段的值,必须使用 PostgreSQL <literal>CURRVAL</literal>
函数,命名需要最后一个值的序列。如果序列名称未知,则需要 <literal>pg_get_serial_sequence</literal> PostgreSQL 8.0 函数。
</para>
<para>
PostgreSQL 8.1 有一个函数 <literal>LASTVAL</literal>,它返回会话中最近使用的序列的值。这避免了对序列、表或列的命名需求。
</para>
<note>
<para>
本函数以前的名字为 <function>pg_getlastoid</function>。
</para>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>result</parameter></term>
<listitem>
&pgsql.parameter.result;
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
<type>int</type> 或 <type>string</type>,包含分配给指定 <parameter>connection</parameter> 中最近插入的行的 OID,如果出错或没有可用的 OID,则为 &false;。
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
&pgsql.changelog.result-object;
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>pg_last_oid</function> 示例</title>
<programlisting role="php">
<![CDATA[
<?php
// 连接到数据库
pg_connect("dbname=mark host=localhost");
// 创建示例表
pg_query("CREATE TABLE test (a INTEGER) WITH OIDS");
// 插入一些数据
$res = pg_query("INSERT INTO test VALUES (1)");
$oid = pg_last_oid($res);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>pg_query</function></member>
<member><function>pg_result_status</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->