Trigger updating inserting
Since I would like to do the same things if the row is inserted, updated, or deleted, I would like to know what's happening in the trigger.
I think I can manage to find if the row is inserted or updated (I can check the old_buffer with the new_buffer). Detecting the DML Operation That Fired a Trigger If more than one type of DML operation can fire a trigger (for example, ON INSERT OR DELETE OR UPDATE OF Emp_tab), the trigger body can use the conditional predicates INSERTING, DELETING, and UPDATING to check which type of statement fire the trigger.
use MSSQLTips go create table tbl Trigger Test ( pk ID integer Identity(1,1) primary key, Order Approval Date Time datetime, Order Status varchar(20) ) insert into tbl Trigger Test values (NULL, 'Pending') insert into tbl Trigger Test values (NULL, 'Pending') insert into tbl Trigger Test values (NULL, 'Pending') select * from tbl Trigger Test go create trigger tr Trigger Test on tbl Trigger Test after update as begin set nocount on; update tbl Trigger Test set Order Approval Date Time=getdate() from tbl Trigger Test t inner join inserted i on ID=ID and i.-- Now, we can replace it, or construct a new value using SUBSTR, INSTR, etc.-- operations for a CLOB, or DBMS_LOB calls for a BLOB.These triggers provide a way of updating elements of the nested table. CALL foo (ora_login_user) / CREATE OR REPLACE PROCEDURE Before_delete (Id IN NUMBER, Ename VARCHAR2) IS language Java name 'thjv Triggers.before Delete ( CHAR)'; CREATE OR REPLACE TRIGGER Pre_del_trigger BEFORE DELETE ON Tab FOR EACH ROW CALL Before_delete (:old. Ename) Within a trigger body of a row trigger, the PL/SQL code and SQL statements have access to the old and new column values of the current row affected by the triggering statement.They fire for each nested table element being modified. Two correlation names exist for every column of the table being modified: one for the old column value, and one for the new column value.