如何在mysql中使用last_insert_id（）

Question

我的SQL语句如下：

insert into foo (val1) values ('v1');  # ID in first table
foo_id = select last_insert_id();

insert into bar (val2) values ('v2');  # ID in second table
bar_id = select last_insert_id();

insert into foobar (foo_id, bar_id, val3) values (foo_id, bar_id,'text'); # third table

以上不起作用，它无法识别foo_id =语句。

Answer 1

insert into foo (val1) values ('v1');  -- ID in first table
SET @foo_id = last_insert_id();

insert into bar (val2) values ('v2');  -- ID in second table
SET @bar_id = last_insert_id();

insert into foobar (foo_id, bar_id, val3) values (@foo_id, @bar_id,'text'); -- third table