Oracle if inserting or updating
Session Date, ' Day') = ' Sunday' or how can I specify that it is about the day and it is supposed to know just from the dd/month/yyyy which of the day of the week it is? A trigger defined on a schema fires for each event associated with the owner of the schema (the current user).You might omit this clause if you just want to record the fact that the operation occurred, but not examine the data for each row.I've come across this issue during trigger code testing today. If INSERTING then statements in this block should execute on T1. If UPDATING then statements in this block should execute on T1. Created_By := USER; END IF; --CLOSE IF FOR INSERTING IF UPDATING THEN IF : OLD. END IF; END IF; END IF; --CLOSE IF FOR UPDATING END; / You cannot perform DML in an 'for each row' trigger on the same table that you are triggering on. Pseudo code is: pkg spec P fire_on_insert boolean := true; compound trigger type array is table of t1%rowtype; r array; for each row if updating then store the row in 'r'; (will be used later to insert) if inserting then if pkg.fire_on_insert then -- -- normal trigger code for insert else -- do nothing because this is an insert -- that has come from our internal update end if; after statement pkg.fire_on_insert := false; for i in 1 .. STATUS = 'INACTIVE' THEN RAISE_APPLICATION_ERROR (-20002, 'INACTIVE RECORDS CAN NOT BE UPDATED', TRUE); END IF; I := I 1; v_DBLOGON(I). The workaround for this is to use variables defined in packages to store information that must be in scope for all timing points.The following code demonstrates the order in which the timing points are fired.The CREATE TRIGGER statement has a lot of permutations, but the vast majority of the questions I'm asked relate to basic DML triggers.Of those, the majority are related to people misunderstanding the order of the timing points and how they are affected by bulk-bind operations and exceptions.
In this case, use a compound trigger to store the data you need to store at row level, and insert it after-statement. Event := 'RECORD INSERT'; END IF; END IF; --CLOSE IF FOR INSERTING IF UPDATING THEN IF : OLD.
There are optional declaration and exception sections, like any other PL/SQL block, if required.
The "dml-event" can be one or more of the following.
The object privileges to the schema objects referenced in the trigger body must be granted to the trigger owner explicitly (not through a role).
The statements in the trigger body operate under the privilege domain of the trigger owner, not the privilege domain of the user issuing the triggering statement (this is similar to the privilege model for stored subprograms).