MySQL Create Trigger if no exists? - 


select trigger_schema, trigger_name information_schema.triggers;  +------------------------+------------------+ | trigger_schema         | trigger_name     | +------------------------+------------------+ | tv_client1             | public_id        | +------------------------+------------------+

i want added existing trigger public_id tv_client2. how create trigger if not exists?

the final result should be:

select trigger_schema, trigger_name information_schema.triggers;  +------------------------+------------------+ | trigger_schema         | trigger_name     | +------------------------+------------------+ | tv_client1             | public_id        | +------------------------+------------------+ | tv_client2             | public_id        | +------------------------+------------------+

the query select trigger_schema, trigger_name information_schema.triggers; shows database name , trigger name. in case public_id trigger has been created in tv_client1 database. if want same trigger exist in tv_client2 database can execute same create trigger public_id ... code against tv_client2 database , same reflected in information_schema.triggers.


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