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27 mar 2014 · I have a HTML form that I want to add a record to an Oracle database when somebody hits submit. The table is hooking up somewhat, the problem is that when somebody submits their information they come up as NULL values in the database table. HTML: <form name="myForm" action="/Add_File.php" onsubmit="return validateForm()" method="post"><!--Form-->
A trigger is often called by the name of its triggering statement (for example, DELETE trigger or LOGON trigger), the name of the item on which it is defined (for example, DATABASE trigger or SCHEMA trigger), or its timing point (for example, BEFORE statement trigger or AFTER each row trigger).
3 lut 2006 · HTML DB Insert Update field by a trigger. 387631 Feb 3 2006 — edited Feb 3 2006. I have a table that has 3 columns, they all not NULL. User_name, Update_date, Update_By. I want to enter user name only and the Database trigger will update the other two fields. I used SQL - Command Processor I could achieve the purpose, but I could do it in the form.
This tutorial shows how to use the CREATE TRIGGER statement to create a trigger, EVAL_CHANGE_TRIGGER, which adds a row to the table EVALUATIONS_LOG whenever an INSERT, UPDATE, or DELETE statement changes the EVALUATIONS table.
Trigger is collection of SQL , PL/SQL and Form coding statements executed based on the event. Triggers are executed automatically at run time based on an event. Triggers can be created in three levels. Form level triggers. Block level triggers. Item level triggers. Form Level Triggers. These triggers are applied to all the components in the form.
14.12 CREATE TRIGGER Statement. The CREATE TRIGGER statement creates or replaces a database trigger, which is either of these: A stored PL/SQL block associated with a table, a view, a schema, or the database. An anonymous PL/SQL block or an invocation of a procedure implemented in PL/SQL or Java.
You can use triggers in a number of ways to customize information management in Oracle Database. For example, triggers are commonly used to: Provide sophisticated auditing; Prevent invalid transactions; Enforce referential integrity (either those actions not supported by declarative integrity constraints or across nodes in a distributed database)
