I have the following schema:

Database: test. Table: per_login_user, Field: username (PK), password

Database: wavinet. Table: login_user, Field: username (PK), password

What I want to do is to create a trigger. Whenever a password field on table per_login_user in database test get updated, the same value will be copied to field password in Table login_wavinet in database wavinet

I have search trough Google and find this solution: http://forums.devshed.com/ms-sql-development-95/use-trigger-to-update-data-in-another-db-149985.html

But, when I run this query:

CREATE TRIGGER trgPasswordUpdater ON dbo.per_login_user
FOR UPDATE
AS
UPDATE  wavinet.dbo.login_user
SET     password = I.password
FROM    inserted I
INNER JOIN
    deleted D
ON  I.username = D.username
WHERE   wavinet.dbo.login_wavinet.password = D.password

the query return error message:

Msg 107, Level 16, State 3, Procedure trgPasswordUpdater, Line 4
The column prefix 'wavinet.dbo.login_wavinet' does not match with a table name or alias name used in the query.