分享 PGSQL & PHP 的一个坑

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This topic created in 4115 days ago, the information mentioned may be changed or developed.

PDO，如下代码是无效的

$db->beginTransaction();
$db->prepare('insert......')
   ->execute();
echo $db->lastInsertId();

你永远也无法获得到lastInsertId的值。

请使用如下方法：

echo $db->lastInsertId('tableName_pkeyName_seq');

Supplement 1 · Feb 25, 2015

sql:

insert into tabel ( field ) values (val) returning primary_key

PHP

echo

pgsql

7 replies • 2015-01-21 17:31:38 +08:00

20150517

Jan 21, 2015 via Android

没commit?

cevincheung

Jan 21, 2015

@20150517 跟那个没关系……就是pg在获取lastinsertid的时候一定要指定seq完整名称。

a591826944

Jan 21, 2015

@20150517 没有 commit 自增 ID 也会被占用的

cevincheung

Jan 21, 2015

@a591826944 +10086

joyqi

Jan 21, 2015

这不算一个坑吧，在手册里清楚的写了

Returns the ID of the last inserted row, or the last value from a sequence object, depending on the underlying driver. For example, PDO_PGSQL requires you to specify the name of a sequence object for the name parameter.

willwen

Jan 21, 2015 via iPhone

習慣用RETURNING id

cevincheung

Jan 21, 2015

@willwen
这是个非常棒的功能！