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db2_last_insert_id

(PECL ibm_db2 >= 1.7.1)

db2_last_insert_idReturns the auto generated ID of the last insert query that successfully executed on this connection

Açıklama

db2_last_insert_id(resource $resource): string

Returns the auto generated ID of the last insert query that successfully executed on this connection.

The result of this function is not affected by any of the following:

  • A single row INSERT statement with a VALUES clause for a table without an identity column.

  • A multiple row INSERT statement with a VALUES clause.

  • An INSERT statement with a fullselect.

  • A ROLLBACK TO SAVEPOINT statement.

Bağımsız Değişkenler

resource

A valid connection resource as returned from db2_connect() or db2_pconnect(). The value of this parameter cannot be a statement resource or result set resource.

Dönen Değerler

Returns the auto generated ID of last insert query that successfully executed on this connection.

Örnekler

Örnek 1 A db2_last_insert_id() example

The following example shows how to return the auto generated ID of last insert query that successfully executed on this connection.

<?php

$database
= "SAMPLE";
$user = "db2inst1";
$password = "ibmdb2";

$conn = db2_connect($database, $user, $password);
if(
$conn) {
$createTable = "CREATE TABLE lastInsertID
(id integer GENERATED BY DEFAULT AS IDENTITY, name varchar(20))"
;
$insertTable = "INSERT INTO lastInsertID (name) VALUES ('Temp Name')";

$stmt = @db2_exec($conn, $createTable);

/* Checking for single row inserted. */
$stmt = db2_exec($conn, $insertTable);
$ret = db2_last_insert_id($conn);
if(
$ret) {
echo
"Last Insert ID is : " . $ret . "\n";
} else {
echo
"No Last insert ID.\n";
}

db2_close($conn);
}
else {
echo
"Connection failed.";
}
?>

Yukarıdaki örneğin çıktısı:

Last Insert ID is : 1

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User Contributed Notes 1 note

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Mark Adkins
12 years ago
On the iSeries and maybe other db2 platforms, this function is not defined--PHP Fatal error:  Call to undefined function  db2_last_insert_id().

The alternative is to use IDENTITY_VAL_LOCAL().

The above example becomes:

<?php

$database
= "SAMPLE";
$user = "db2inst1";
$password = "ibmdb2";

$conn = db2_connect($database, $user, $password);
if(
$conn) {
   
$createTable = "CREATE TABLE lastInsertID
      (id integer GENERATED BY DEFAULT AS IDENTITY, name varchar(20))"
;
   
$insertTable = "INSERT INTO lastInsertID (name) VALUES ('Temp Name')";
   
$getIdentity = "SELECT IDENTITY_VAL_LOCAL() AS LASTID FROM SYSIBM.SYSDUMMY1";

   
$stmt = @db2_exec($conn, $createTable);

   
/* Checking for single row inserted. */
   
$stmt = db2_exec($conn, $insertTable);

   
$stmt = db2_exec($conn, $getIdentity);
   
$row = db2_fetch_assoc($stmt);
   
$ret = $row['LASTID'];

    if(
$ret) {
        echo
"Last Insert ID is : " . $ret . "\n";
    } else {
        echo
"No Last insert ID.\n";
    }
   
   
db2_close($conn);
}
else {
    echo
"Connection failed.";
}
?>
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