If updating then

20-Aug-2019 15:49

The INSERT section works fine but the problem is coding the UPDATING section because when I try to update the table I recieve ORA-04091 "mutanting table".

Since I would like to do the same things if the row is inserted, updated, or deleted, I would like to know what's happening in the trigger.

Trigger names do not need to be unique with respect to other schema objects, such as tables, views, and procedures.

For example, a table and a trigger can have the same name; however, to avoid confusion, this is not recommended. If a triggering statement includes a column list, the trigger is fired only when one of the specified columns is updated.

A way to make things work is to use a dummy column, so if you have a table with auto_increment column ID and unique key a,b and a smallint dummy column for instance, the query might look like this: INSERT INTO test (a,b) VALUES ('1','2') ON DUPLICATE KEY UPDATE ID=LAST_INSERT_ID(ID), Dummy = NOT dummy; Now, SELECT LAST_INSERT_ID(); will return the correct ID.

I'm not sure whether this should be regarded as a bug or not, but it does make the construct less useful.We have more recently created improved updaters, and are now providing 510 (Windows) and 950 (Mac). Reminders were added to the installer and to conversion windows that emphasize making manual backups before updating. And if you're sending them outside your computer, that's a very good idea — so your family history doesn't ever fall into the wrong hands.The improved updaters contain the following changes: 1. The original tree file is now always converted (without needing to uncheck a "convert original" checkbox), so that links to Ancestry trees if any are always preserved. You'll find it as a new option in the export window. We've crushed every crashing bug we could find or that's been reported to us. Some actions that previously took several minutes in FTM 2014 now take just a few seconds.Oracle Database XE automatically executes a trigger when a specified event takes place, which usually is a DML statement being issued against the table.The types of triggers are: Trigger names must be unique with respect to other triggers in the same schema.

I'm not sure whether this should be regarded as a bug or not, but it does make the construct less useful.We have more recently created improved updaters, and are now providing 510 (Windows) and 950 (Mac). Reminders were added to the installer and to conversion windows that emphasize making manual backups before updating. And if you're sending them outside your computer, that's a very good idea — so your family history doesn't ever fall into the wrong hands.The improved updaters contain the following changes: 1. The original tree file is now always converted (without needing to uncheck a "convert original" checkbox), so that links to Ancestry trees if any are always preserved. You'll find it as a new option in the export window. We've crushed every crashing bug we could find or that's been reported to us. Some actions that previously took several minutes in FTM 2014 now take just a few seconds.Oracle Database XE automatically executes a trigger when a specified event takes place, which usually is a DML statement being issued against the table.The types of triggers are: Trigger names must be unique with respect to other triggers in the same schema. The improved updaters make the process simpler but the result is the same.