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.
Answers
Yes. This behavior of
Importantlast_insert_id()
is documented in the MySQL docs:If you insert multiple rows using a single INSERT statement,
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