1.

What are the virtual tables available during the execution of the database trigger?

Answer»
  • The THEN and NOW tables are the virtual tables that are available during the DATABASE TRIGGER EXECUTION. The table columns are referred to as THEN.column and NOW.column respectively.
  • Only the NOW.column is available for insert-related TRIGGERS.
  • Only the THEN.column VALUES are available for the DELETE-related triggers.
  • Both the virtual table columns are available for UPDATE triggers.


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