I have two tables (in postgres) - ads and logs. After every insert into logs table, depending on the action it should increment the count of a column in the ads table. I have tried to write a function which the trigger will call, but it throws a error while trying to create the function. I am new to postgresql triggers and function, so...
Can I use a trigger in MySQL to create a new database when a value is inserted into another database. ...
For another question, I'm running into a misconception that seems to arise here at SO occasionally. Some questioners seem to think that Triggers are to Databases as Events are to OOP. Does anyone have a good analogy to explain why this is a flawed comparison, and the consequences of misapplying it? EDIT: Bill K. has hit it correctly,...
This question is very similar to SQL Server 2005: T-SQL to temporarily disable a trigger However I do not want to disable all triggers and not even for a batch of commands, but just for one single INSERT. I have to deal with a shop system where the original author put some application logic into a trigger (bad idea!). That application ...
To be more specific: I want a unit test to trigger SaveFileDialog's FileOk event in order to test whether my own code (which wraps SFD and does some additional things before and after ShowDialog) is working as intended. Thanks in advance for any help on this. ...
MS SQL Server doesn't have row level triggers, correct? If I needed to insert a row from within a trigger and then insert another row, based on the result of the first insert, would a cursor be the best solution? For example, is there a better way to do this: CREATE TABLE t1 (foo int) CREATE TABLE t2 (id int IDENTITY, foo int) CREATE T...
I have the attached trigger that runs if the tbl_repair_visit.TENANTSATISFACTION = 'Poor' on an update. The issue i have if we change the engineers name the Engineer column gets updated and the trigger runs again if TENANTSATISFACTION = 'Poor' How can i set this up to only run if the TENANTSATISFACTION = 'Poor' column is updated and ig...
I am working on a Database that uses the Float data type to store values that should only be 2 decimal positions (dollars and cents). Using Float appears to work OK, as long as the person updating the Float column does a ROUND. Of course, this does not always happen and then when a SUM is done it is always off a few pennies from what is ...
This shouldn't be hard to do. I'd expect Enterprise Manager to show a folder of trigger and a list and an icon... but I don't see it anywhere. My google results get me answers where I have to write code. Are you kidding me? The only way is by writing code? ...
I have a DataTemplate that is displaying objects with three fields, e.g.: Name = "Font Color" Value = "Orange" Editable = "True" but I want to display them as e.g.: Font Color: Orange Editable But I'm having trouble finding the syntax to use Triggers here in order to e.g. display "Editable" when the field Editable="True" Does anyon...
Hi! I'm trying to log all the errors in my database into a table. So as user sys i wrote the following code: CREATE TABLE servererror_log ( error_datetime TIMESTAMP, error_user VARCHAR2(30), db_name VARCHAR2(9), error_stack VARCHAR2(2000), captured_sql VARCHAR2(1000)); / CREATE OR REPLACE TRIGGER...
I need to create a SQL Server database that will recieve updates by some replication mechanism from another database. I need to write insert, update and delete triggers that will execute when this replilcation occurs. I have experience with triggers but not with replication. Should I use Transactional or Merge replication, or does it m...
Is it possible to set up a mysql trigger that fires back the id number of that record when ever there is an insert into the database AND how do i capture that using php? ...
Hello, I've implemented the following trigger: CREATE TRIGGER [OnContactDeleted] ON [TABLE].[Contact] INSTEAD OF DELETE AS BEGIN SET NOCOUNT ON /*Store contact ID to variable*/ Update [TABLE].[Account] Set [PrimaryContactID] = null where [TABLE].[Account].[PrimaryContactID] = (Select ContactID fr...
Hi, I have the following issue. We have a user table, every user has an unique email and username. We try to do this within our code but we want to be sure users are never inserted (or updated) in the database with the same username of email. I've added a BEFORE INSERT Trigger which prevents the insertion of duplicate users. CREATE TRI...
i'm using a sql server 2000. My Tree structured table is here tItem ItemID int keyfield, ParentItemID int, Title nvarchar 200, ChildCount int, Status int I need to calculate ChildCount and Status trigger. When i insert one item, parent item must calculate child count and status. 0 < status < 100 Calculate parent statu...
hi, I want to use the raise_application_error-procedure to stop the login process. I wrote a trigger, that checks the TERMINAL String, if it is right (I know that isn't realy secure, but at first, it is enough) So the Trigger works fine and does what i want, but the raise_application_error causes an rollback and sends not the exception t...
I have two triggers After Insert or Update and Instead of Insert. It appears that the after trigger is not running or sending the correct data. I have verified the correct operation of Z_UpdateStageTable stored procedure and the Instead of Insert trigger. Removing the Instead of Insert trigger doesn't have any affect. The After Insert, ...
Triggers seems like a simple solution for Audit logging. Why should I use Interceptors? Database portability is one con of trigger... what are others? ...
What is the best way to program an immediate reaction to an update to data in a database? The simplest method I could think of offhand is a thread that checks the database for a particular change to some data and continually waits to check it again for some predefined length of time. This solution seems to be wasteful and suboptimal to ...