如何使用LAST_INSERT_ID（）在MySQL

Question

我的SQL語句是這樣的：

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 

以上不工作，它不承認foo_id =語句。

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