LAST_INSERT_ID() MySQL

You could store the last insert id in a variable :

INSERT INTO table1 (title,userid) VALUES ('test', 1); 
SET @last_id_in_table1 = LAST_INSERT_ID();
INSERT INTO table2 (parentid,otherid,userid) VALUES (@last_id_in_table1, 4, 1);    

Or get the max id from table1 (EDIT: Warning. See note in comments from Rob Starling about possible errors from race conditions when using the max id)

INSERT INTO table1 (title,userid) VALUES ('test', 1); 
INSERT INTO table2 (parentid,otherid,userid) VALUES (LAST_INSERT_ID(), 4, 1); 
SELECT MAX(id) FROM table1;  

(Warning: as Rob Starling points out in the comments)

This enables you to insert a row into 2 different tables and creates a reference to both tables too.

START TRANSACTION;
INSERT INTO accounttable(account_username) 
    VALUES('AnAccountName');
INSERT INTO profiletable(profile_account_id) 
    VALUES ((SELECT account_id FROM accounttable WHERE account_username='AnAccountName'));
    SET @profile_id = LAST_INSERT_ID(); 
UPDATE accounttable SET `account_profile_id` = @profile_id;
COMMIT;

I had the same problem in bash and i'm doing something like this:

mysql -D "dbname" -e "insert into table1 (myvalue) values ('${foo}');"

which works fine:-) But

mysql -D "dbname" -e "insert into table1 (myvalue) values ('${foo}');set @last_insert_id = LAST_INSERT_ID();"
mysql -D "dbname" -e "insert into table2 (id_tab1) values (@last_insert_id);"

don't work. Because after the first command, the shell will be logged out from mysql and logged in again for the second command, and then the variable @last_insert_id isn't set anymore. My solution is:

lastinsertid=$(mysql -B -N -D "dbname" -e "insert into table1 (myvalue) values ('${foo}');select LAST_INSERT_ID();")
mysql -D "dbname" -e "insert into table2 (id_tab1) values (${lastinsertid});"

Maybe someone is searching for a solution an bash :-)

Since you actually stored the previous LAST_INSERT_ID() into the second table, you can get it from there:

INSERT INTO table1 (title,userid) VALUES ('test',1); 
INSERT INTO table2 (parentid,otherid,userid) VALUES (LAST_INSERT_ID(),4,1);
SELECT parentid FROM table2 WHERE id = LAST_INSERT_ID();