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How to trigger a table update in Oracle?
If old.status <> new.status OR Flag = 3 OR ResultofAction = 1, the trigger will populate another table. tableA: id | status | Flag | ResultOfAction | ExternalId | Customer 1 200 2 0 332 C1 2 200 0 0 333 C1 3 200 2 0 334 C1 TableB will populate new row automatically. If one of the row in tableA update. e.g. id of 1 to 300, then tableB
Can you change the trigger type in Oracle SQL?
ORA-04084: cannot change NEW values for this trigger type 04084. 00000 – “cannot change NEW values for this trigger type” *Cause: New trigger variables can only be changed in before row insert or update triggers. *Action: Change the trigger type or remove the variable reference. It does not allow to change the field on AFTER triggers.
Why do I get an Oracle 10g trigger error?
In Oracle 10g I got the following error: ORA-04084: cannot change NEW values for this trigger type 04084. 00000 – “cannot change NEW values for this trigger type” *Cause: New trigger variables can only be changed in before row insert or update triggers. *Action: Change the trigger type or remove the variable reference.
When do I add a row to a table in SQL?
When I add a row to Table A I need column Z of Table B to have 1 added to its numeric value in the row where column X = column Y. This is what I have been able to get so far in SQL based on my limited understanding of triggers, in case it helps (I realise it’s not very good, treat it as pseudocode):
Do you have to build a table each time the trigger runs?
IF you want the table to be built each time the trigger runs then you have no choice but to use the the system tables to find the columns and create a table with those column definitions. Of course your first step will have to be to drop the existing table or the trigger won’t work the second time someone updates a record.
Do you need to drop a table every time you update a record?
Of course your first step will have to be to drop the existing table or the trigger won’t work the second time someone updates a record. However, I think you need to rethink this process. Dropping a table then creating a new one every time you change a record is a seriously bad idea.
How to create triggers in SQL and T-SQL?
I am a newb to SQL and T-SQL and have not created triggers before. Guidance on how to get this setup would be appreciated. The table I want to create the trigger on is called [Inspections]. Users will add new records to this table and included a DateInspected value in that row.