Php/docs/function.db2-last-insert-id
db2_last_insert_id
(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
说明
db2_last_insert_id
( resource $resource
) : string
Returns the auto generated ID of the last insert query that successfully executed on this connection.
The result of this function is not affected by any of the following:
- A single row INSERT statement with a VALUES clause for a table without an identity column.
- A multiple row INSERT statement with a VALUES clause.
- An INSERT statement with a fullselect.
- A ROLLBACK TO SAVEPOINT statement.
参数
resource- A valid connection resource as returned from db2_connect() or db2_pconnect(). The value of this parameter cannot be a statement resource or result set resource.
返回值
Returns the auto generated ID of last insert query that successfully executed on this connection.
范例
Example #1 A db2_last_insert_id() example
The following example shows how to return the auto generated ID of last insert query that successfully executed on this connection.
<?php$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.";}?>
以上例程会输出：
Last Insert ID is : 1
