mysql - creating trigger across different databases -

Is there a way to create triggers on different databases? My requirement is like: -

  database: a1.db table is included: t1 database: a2.db table included: t2  

use me now The trigger on T1 (whenever a delay and update operation) is on T1, the value is to be inserted into T2.

Waiting for your response ...

  create triggers> `A1.db`.t1 on` ad_t1` for each row in `a2.db`.t2 values ​​INSERT (...)