CREATE/REPLACE TRIGGER Syntax | VantageCloud Lake - CREATE TRIGGER and REPLACE TRIGGER Syntax - Teradata VantageCloud Lake

{ CREATE | REPLACE } TRIGGER [ database_name_1. ] trigger_name
  [ ENABLED | DISABLED ]
  { BEFORE | AFTER } [ temporal_option ] triggering_event
  ON [ database_name_2. ] table_name
  [ ORDER integer ]
  REFERENCING reference [...]
  [ FOR EACH { ROW | STATEMENT } ]
  [ WHEN ( search_condition ) ]
  { trigger_action | BEGIN ATOMIC trigger_action END } [;]

triggering_event

{ INSERT | 
  DELETE |
  UPDATE [ OF { column_name [,...] | ( column_name [,...] ) } ]
}

reference

{ OLD [ ROW ] [AS] old_transition_variable_name |
  NEW [ ROW ] [AS] new_transition_variable_name |
  { OLD_TABLE | OLD TABLE } [AS] old_transition_table_name |
  { NEW_TABLE | NEW TABLE } [AS] new_transition_table_name |
  OLD_NEW_TABLE [AS] old_new_table_name ( old_value, new_value )
}

trigger_action

{ SQL_procedure_statement [;...] |
  ( SQL_procedure_statement [;...] )
}