Trigger to prevent insert of multiple rows

I am a new user to Oracle. My project is to convert an existing Sybase database. The trigger that I am trying to convert prevents multiple rows from being inserted in a single insert statement. I have tried the following but the implicit cursor SQL%ROWCOUNT seems to be NULL. According to Oracle support the trigger is on the same level as the insert statement so the implicit cursor from the insert is not available in the trigger.

CREATE OR REPLACE TRIGGER seriesmaster_chkmultrows_tr AFTER INSERT ON dri_master.series_master BEGIN
    IF SQL%ROWCOUNT > 1 THEN

	RAISE_APPLICATION_ERROR (-20004,'Can only insert one row in '||
		'series_master table');

Does anybody have a suggestion on how I can implement this? This concept of preventing multiple row inserts is used in many of the tables in this system.

Feel free to email or respond here.

Thanks for any help provided.

Rona Crystal Received on Tue Sep 05 1995 - 00:00:00 CEST