Retrieve id of each INSERT statement in multi query

Question

Is it possible to retrieve id (ua_id is in my case) for each INSERT statement in following SQL request

INSERT INTO users_addresses (ua_user_id, ua_address_id         


        

Answer 1

In MySQL you can use LAST_INSERT_ID() function. You need to use this function each time - after INSERT statement. It gets ID for the last inserted record.

MySQL documentation - LAST_INSERT_ID()

Answer 2

Well. you do a multiquery, let's use it:

<?php
$db->multi_query('
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,1);
SELECT LAST_INSERT_ID();
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,2);
SELECT LAST_INSERT_ID();
INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,3);
SELECT LAST_INSERT_ID()') or trigger_error($db->error);
do {
   if ($result = $db->store_result()) {
      while ($row = $result->fetch_row()) {
          var_dump($row);
      }
   }
} while ($db->next_result());

Answer 3

Do you mean lastInsertId?

http://cl1.php.net/manual/en/mysqli.insert-id.php

hope it helps!

Answer 4

Yes. Use $mysqli->insert_id - see working example below.

$mysqli = new mysqli(host, user, pass, db);

$query  = "INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,1); ";
$query .= "INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,2); ";
$query .= "INSERT INTO users_addresses (ua_user_id, ua_address_id) VALUES (1,3); ";

if ($mysqli->multi_query($query)) {
    do {
        /* Returns the auto generated id used in the last query */
        printf("%d\n", $mysqli->insert_id);
        /* Check if loop should continue */
        if ($mysqli->more_results() === FALSE) break;
    } while ($mysqli->next_result());
}

Use built in mysqli::$insert_id - documentation: http://php.net/manual/en/mysqli.insert-id.php

Answer 5

mysqli->insert_id will return the ID of the first row inserted if you insert in the same table you then know that the next row inserted is the first row insert_id + 1...

If you work with many tables at once you then need to scroll back your results then you need to create another query using :

SELECT MAX(id) FROM table-a WHERE 1
...
SELECT MAX(id) FROM table-n WHERE 1

Now I don't know what is better (single insert query or multi query)...