PowerDesigner provides various methods for editing a trigger.
You can:
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Edit the code directly in the Definition tab of its property sheet.
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Attach a predefined trigger template or create and attach your own reusable trigger templates
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Insert predefined trigger template item code or create your own reusable trigger template items
Note:
If you modify the definition of a DBMS trigger template or template item, you are modifying the DBMS definition file. We recommend that you only ever work on a copy of the original DBMS definition file.