Updating/Inserting multiple tables

Question

Hi,
I've been trying to figure out how to update/insert multiple fields in 2 different tables with one RowSet. im new to java and have been using Creator for about 2 weeks
basically there are 3 tables: one containing user info(USER), one containing department info (DEPT), and one table relating the two (USER_DEPT). my form lets uers update, among others, their NAME in table USER, and DEPT_NAME in table DEPT.
These are all VARCHAR types.
I used the Clips provided by Creator to initialize and do the updating. i am using updateRow() to do the updating. the fields are bound to specific database fields. the RowSet is updatable.
in my app i chose some specific fields, but for the sake of avoiding pasting very long SQL queries lets just say i chose everything. some of the queries i tried:
SELECT *
FROM USER WHERE USER.USERNAME = ?This one works.
SELECT *
FROM USER, DEPT, USER_DEPT
where USER.ID = USER_DEPT.USER_ID
and DEPT.ID = USER_DEPT.DEPT_ID AND USER.USERNAME = ?this one gives me a Conversion Error message. i have no conversion going on whatsoever. i havent even learned how to use conversion yet.
another query i tried:
SELECT * FROM USER
INNER JOIN USER_DEPT ON USER.ID = USER_DEPT.USER_ID
INNER JOIN DEPT ON DEPT.ID = USER_DEPT.DEPT_ID
WHERE USER.USERNAME=?this one gives me no error. the app works except the database doesnt get updated. i have determined that when using this query updateRow() is skipped. i dont know why. the app keeps running in that it goes to the next page as defined by the XML, but updateRow() is never called.
so can anyone please tell me how to update/insert multiple fields in multiple tables using one RowSet PLEASE?
THANKS!

Answer 1

The only way this can be done with a single rowset is if you do your query against a view (instead of a join), and if your JDBC driver supports updates to multiple tables through a view. Otherwise, you're going to need to update the underlying tables individually.
Craig