I’ve been looking at some previous answers on triggers on here but can’t find what I need exactly but I’m sure my question has been asked/answered before. I’m trying to keep track of any changes to …
Tag: triggers
How to create trigger in informix?
I am trying to write a trigger like in the following simplified example: This fails! Only this works: What am I doing wrong? Answer I think you should write a stored procedure with the IF – THEN logic and call that from this trigger. I think triggers support only simple SQL statements, not SPL statements edit:
Trigger created with compilation errors
I wrote this trigger to discount the top client in the database by 10% when a new purchase is made: However when i execute this statement i receive this message: Can someone please tell me what I am doing wrong? Thanks, Alex. UPDATE – Errors: Solution: Answer I don’t have your tables to hand so I can’t guarantee that I’ve
Solution for: Store update, insert, or delete statement affected an unexpected number of rows (0) [closed]
I found a solution for people who get an exception: Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were …
Need to list all triggers in SQL Server database with table name and table’s schema
I need to list all triggers in SQL Server database with table name and table’s schema. I’m almost there with this: I just need to get the table’s schema also. Answer Here’s one way: EDIT: Commented out join to sysusers for query to work on AdventureWorks2008. EDIT 2: For SQL 2000
How can I use a PostgreSQL triggers to store changes (SQL statements and row changes)
Using PostgreSQL triggers, is it possible to record the changes that have happened to a table due to INSERT or UPDATE SQL statements and log them to a file for later execution. This is only to be used temporally so just something quick and dirty would do. Answer example of an audit trigger from https://www.postgresql.org/docs/current/static/plpgsql-trigger.html
How can I do a BEFORE UPDATED trigger with sql server?
I’m using Sqlserver express and I can’t do before updated trigger. There’s a other way to do that? Answer MSSQL does not support BEFORE triggers. The closest you have is INSTEAD OF triggers but their behavior is different to that of BEFORE triggers in MySQL. You can learn more about them here, and note that INSTEAD OF triggers “Specifies that