Home/ Questions/Q 6765241
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-26T14:41:21+00:00

If I insert multiple records with a loop that executes a single record insert,

  • 0

If I insert multiple records with a loop that executes a single record insert, the last insert id returned is, as expected, the last one. But if I do a multiple records insert statement:

INSERT INTO people (name,age)
VALUES ('William',25), ('Bart',15), ('Mary',12);

Let’s say the three above are the first records inserted in the table. After the insert statement I expected the last insert id to return 3, but it returned 1. The first insert id for the statement in question.

So can someone please confirm if this is the normal behavior of LAST_INSERT_ID() in the context of multiple records INSERT statements. So I can base my code on it.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Yes. This behavior of last_insert_id() is documented in the MySQL docs:

    Important
    If you insert multiple rows using a single INSERT statement, LAST_INSERT_ID() returns the value generated for the first inserted row only. The reason for this is to make it possible to reproduce easily the same INSERT statement against some other server.

    • 0