Hello all,

     I want to know that, if i want to write trigger in sql server 2005 from where should i do it. or if i want to view trigger which has been already there for table.

  plz help me out.

thx in advance

Abhay

Hi,

you have to write it in query analyzer for a particular table. The procedure is same as in sql server 2000 or from the database expand tables then expand the particular table which u want write the trigger then right click the triggers and u get the "New Trigger"  option.

regards,

Jayanthi

Hi,

Trigger is mainly used for the situation when the db automeically trigger some events.

DML Triggers are,

Insert trigger,update trigger,delete trigger

Assume u write the delete trigger for your table.

whenever a row is deleting that table the trigger will raise and the corresponding codes will be executed.

for ex: In your delete trigger u delete the subcategories and products.

assume trigger table consists of categories.

whenever the category is deleting your delete trigger will raise and autometically corresponding subcategories and products will be deleted.

Like that works all trigger events.

With Regards

Antony

Hello All,

   Thx for your comments. Thx Jayanthi for your valuable guidance. It solved my problem...

With Best Regards

   Abhay

create trigger dbo.audit_SomeTable on dbo.SomeOriginTable for update
as
if update(desired_date) --if the desired_date field is changing do the insert
begin
	insert into dbo.SomeTable_audit (rowid,FromDATE,ToDATE)
	select i.rowid,d.desired_date,i.desired_date
		from inserted i
	join deleted d on
		i.rowid = d.rowid
end
go