triggers

Check constraints in Ms Sql Sever 2005

Hi , I am trying to add a check constraint which verity if after an update the new value (which was inserted) is greater than old values which is already stored in table. For example i have a "price" column which already stores value 100, if the update comes with 101 the is ok, if 99 comes then my constraint should reject the update p...

How can I create a disabled trigger in SQL Server 2005?

When using Oracle you can create a disabled trigger specifing the word DISABLE before the trigger body. How can I achive the same effect in Sql Server? ...

events doesn't work with the InvokeCommandAction

i am using a webbrowser control and interaction-triggers , and there is some events which don't work like ScriptNotify and LoadCompleted is this an limitation or there is something i should do Thanks ...

problem with trigger in oracle

the problem is this : I implemented a trigger on the table called CLAN_AFFILIATI that increases (if inseriemento) and decreases (in case of cancellation) an attribute (NUMAFFILIATI) of another table called CLAN. what I would do is block the update NUMAFFILIATI of Clan by the user and had thought to r another trigge on CLAN that did this:...

Microsoft Sync Framework 2.0 : is it possible to update the column value within the same sync transaction (Client Upload Server Update) scenario?

Hello all, Let say, I have a table with 2 columns (OrderId and OrderDate). In the original design, OrderId is the surrogate (which is still somewhat meaningful to the end user since they still like to refer to OrderNumber 12345) PK with IDENTITY integer. Since we start to adopt SyncFx and to support offline client creation scenario, we...

Security context in a trigger

I'll start of by saying that I'm a .net guy having to play in a salesforce.com world right now. My question is this; Within the context of an pre-update/insert trigger can I set the value of a field that the user (the user that is updating the object when the trigger fires) does NOT have on their page layout? ...

Save Update attempts in temp table in Update Trigger

The query is - how to Save Update attempts in temp table in Update Trigger ...

MySQL Trigger - update table with value selected from another table

Hi, I'm having problems updating row in a table with value selected from another table in MySQL Trigger. My Trigger looks like this CREATE TRIGGER update_user_last_login AFTER INSERT or UPDATE ON last FOR EACH ROW BEGIN DECLARE _user_id INTEGER; SELECT user_id INTO _user_id FROM user_profile WHERE user_name = N...

mysql create a trigger in a database listening to table changes in a different database

something like: CREATE TRIGGER schema1.triggername AFTER INSERT ON schema2.table FOR EACH ROW BEGIN ; END; ERROR 1435 (HY000): Trigger in wrong schema ...

Should I use a database trigger for the following problem?

Hi, I've been given the following task: An external source will write a name, datetime and value to a database table (table A) at random intervals. I need to copy this data to another table (table B) and delete the row in table A. If the name doesn't exist in a lookup table then the row needs to remain in table A until it does and then...

MySQL create "before insert" trigger failing and raising errors in triggers

I have successfully created an insert before trigger on a table using the innodb engine which "throws" an error by performing an insert on a non-existent table. The problem is that as I try to run the database create script on the production server it fails because the insert table does not exist. However, the same script runs fine on my...

NHibernate: StaleStateException with delete triggers.

I have an NHibernate entity which contains a many-to-many list of related items. When a certain property of the entity changes, a database trigger is called that removes all associations between the entity and any entities that it is joined to. However, NHibernate throws a StaleStateException with a message along the lines of: Batch u...

loading a JqGrid on selecting date..

I have a datepicker and on selecting the date and clicking button it should display the grid beneath it ... my approach: <script type="text/javascript"> //<![CDATA[ $(document).ready(function(){ $("#datepicker").datepicker({ showOn:'button', buttonImage: '../../image/icon_cal.png', button...

Replacing DB Trigger mechanism

Hi everyone. I'm using SQL Server (2005). Today i have some tables that everytime the data inside them changes i get DB trigger (implemented via the sql server trigger mechanism) and handles it. the problem is that the trigger mechanism has bad performance and handling with it is not exaclly afun thing to do. now to my question. is anyb...

MySQL Triggers - AFTER INSERT trigger + UDF sys_exec() issue

Problem: I've got a table which holds certain records. After the insert has been done, I want to call an external program (php script) via MySQL's sys_* UDFs. Now, the issue - the trigger I have passes the ID of the record to the script. When I try to pull the data out via the script, I get 0 rows. During my own testing, I came to a conc...

SQLite update on select (or vice versa)

Is there a one-statement select-and-update (or update-and-select) method in SQLite? A trigger can invoke select, but that doesn't allow update to be used in an expression: CREATE TABLE id ( a integer ); CREATE TRIGGER idTrig AFTER UPDATE ON id BEGIN SELECT old.a FROM id; END; INSERT INTO id VALUES ( 100 ); INSERT INTO test VALUES ( (UP...

How can I use triggers ?

I have a Database with some tables, I wanna to run a method in C# whenever some data is written in the tables. I know I have to use triggers, but I don't know how!!! It would be appreciated if you guide me. P.S: I'm using SQLExpress 2008 ...

Posting data to a web page from SQL Server trigger

Is it possible to post data from a SQL Server trigger to an external web page via POST or GET method? For example, I want to post value of a field "BOOKID" on INSERT trigger to http://www.example.com/newbook.php?id=XXXXX ...

What's the fastest way to poll a MySQL table for new rows?

My application needs to poll a MySQL database for new rows. Every time new rows are added, they should be retrieved. I was thinking of creating a trigger to place references to new rows on a separate table. The original table has over 300,000 rows. The application is built in PHP. Some good answers, i think the question deserves a boun...

Sub-query in tuple constraint DB2

Hi, In my database course we use a book (Database System - the Complete Book) which says the following is a valid create table statement in standard SQL: CREATE TABLE Participants ( meetid INT NOT NULL, -- ... CONSTRAINT RoomConstraint CHECK (1 >= ALL (SELECT num FROM Numbers) ); But DB2 complains and gives 20 pos...