Top "Triggers" questions

Triggers are rules that perform actions or invoke functions in response to events such as matching conditions or database changes.

ORA-04082: NEW or OLD references not allowed in table level triggers

itI have table named per. In the per table, I have a field named "fl1" and another field named "fl2". …

oracle triggers
Are database triggers evil?

Are database triggers a bad idea? In my experience they are evil, because they can result in surprising side effects, …

sql triggers
Detect with JQuery when a select changes

I have a Jqgrid which dinamically generates selects like this: <select id="won" style="width: 65px;"> <option …

jquery html jqgrid triggers
Trigger click jquery not working

I'm figuring out why this simple script is not working: jQuery.noConflict(); jQuery(document).ready(function() { jQuery('.next_button …

jquery triggers pageload
Refresh a materialized view automatically using a rule or notify

I have a materialized view on a PostgreSQL 9.3 database which seldom changes (about twice a day). But when it does, …

postgresql triggers postgresql-9.3 materialized-views
Populating django field with pre_save()?

class TodoList(models.Model): title = models.CharField(maxlength=100) slug = models.SlugField(maxlength=100) def save(self): self.slug = title super(TodoList, …

python database django model triggers
SQL Server: check whether a Trigger is Enabled or Disabled?

How we can see which Trigger is Enabled or Disabled in SQL Server 2008?

sql-server sql-server-2008 tsql triggers
Fire a trigger after the update of specific columns in MySQL

In MySQL, I want to fire a trigger after the update of specific columns. I know how to do it …

mysql sql triggers
How do I add a "last updated" column in a SQL Server 2008 R2 table?

I have a table in my SQL Server 2008 R2 database, and would like to add a column called LastUpdated, that …

triggers sql-server-2008-r2
Using MySQL triggers to log all table changes to a secondary table

I have a table: CREATE TABLE `data_table` ( `data_id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY , `field1` INT NOT …

mysql triggers