I have a table Group_Members with a DELETE trigger and an UPDATE trigger. The DELETE trigger updates some rows in A hence invoking the UPDATE trigger. Here’s the DELETE trigger code: UPDATE …
Tag: triggers
How to check if a column is being updated
Let’s suppose I have an instruction that does the following: Is there any way to do it in Firebird, the same thing as Oracle does … The trigger would only be executed if it had only only updating the “active” column. I tried that way, but it’s not working: Answer Firebird doesn’t have anything like updating. You need to compare
After update Trigger firing, when there’s an EXISTS clause to prevent the update
My app is throwing an exception on an “after update” trigger in the database when the following query is run against a record that contains an email address that already exists on another user. In other words, the record hasn’t been updated, but should have been ignored because of the EXISTS clause. Does anybody know why it might be firing
SP2-0552: Bind Variable “NEW” is not declared
I am trying to learn pl/sql triggers. I am trying to create a simple trigger by tracking tutorial http://www.tutorialspoint.com/plsql/plsql_triggers.htm but I got below error. I searched on the …
drop trigger if exists and create
I would like to check if the trigger exists on [tbl] and create another one. I tried it this way but didn’t work. What am I doing wrong? Answer The [name] field in sys.objects will contain only the actual name (i.e. trg), not including the schema (i.e. dbo in this case) or any text qualifiers (i.e. [ and ] in
Trigger for checking a given value before INSERT or UPDATE on PostgreSQL
I have to create a trigger to update a database where there are products. Products have an expiration date and before inserting or updating a product I must check if the expirationDate is superior to the current timestamp. If it is I must do the insert/update regularly (this is what I have problems with). If not I just simply ignore
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 in Oracle and DB2: CREATE TRIGGER myTrigger AFTER UPDATE of myColumn1,myColumn2 … ON myTable FOR EACH …
Does an update statement in update trigger, fire trigger again?
If I use an update statement in an update trigger, does that update statement in update trigger causes fire trigger? Answer Make sure your database property for RECURSIVE_TRIGGERS is set to off (which is the default anyway) so that it cannot be fired recursively. http://technet.microsoft.com/en-us/library/ms190946.aspx
Create trigger to insert a column value into other column of same table SQL Server 2005
How to create trigger to insert a value in a column same as value of another column of same table of a newly inserted row in the table. Suppose I have table like below I want columnB value to be inserted into ColumnA as soon as row gets inserted into table or columnB value gets updated . But it should
How do I create a trigger to insert a value into an ID field that is Max([ID Field])+1 on insert
When I add a new record I want SQL Server to automatically add a fresh ID. There are already some records which have been migrated over (from Access) and until I finish preparing the server for other required functionality I will be manually migrating further records over (if this affects any possible answers). What are the simplest ways to implement