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(PECL ibm_db2 >= 1.7.1)
db2_last_insert_id — Returns the auto generated ID of the last insert query that successfully executed on this connection
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.
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.
Returns the auto generated ID of last insert query that successfully executed on this connection.
Beispiel #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.";
}
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
Last Insert ID is : 1
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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