title: creating trigger across different databases
body: <p>Is there any way to create triggers on different databases? my requirement is like:-</p>
  
  <pre><code> database: a1.db consist table: t1
   database:a2.db  consist table: t2
  </code></pre>
  
  <p>now i have to use trigger on t1 (whenever any delete and update operation) happens on t1 a value has to be inserted into t2.</p>
  
  <p>waiting for your feedback...</p>