Web29 sep. 2024 · How To Apply Database Trigger in PL/SQL A trigger has three basic parts: A triggering event or statement A trigger restriction A trigger action Each part of the trigger is explained below: Triggering Event or Statement: It is a SQL statement that causes a trigger to be fired. Web10 jan. 2024 · For an UPDATE trigger, OLD contain the old values, and NEW contain the new values. For a DELETE trigger, OLD contain the old values, and NEW contain no values. Once you execute and compile this trigger then you can take it on a test run by writing DML statements on the underlying source table ‘ Superheroes’.
70 Common PL/SQL Interview Questions (And Example Answers)
Web17 jul. 2024 · The ‘Cursor’ is the PL/SQL construct that allows the user to name the work area and access the stored information in it. The major function of a cursor is to retrieve data, one row at a time, from a result set, unlike the SQL commands which operate on all the rows in the result set at one time. Cursors are used when the user needs to update ... WebOver 9+ years of experience as OracleDeveloper in development and production environments. Extensive working experience in Oracle Database (12c/11g/10g/9i). SQL, … csf products
Table Auditing Using DML Triggers In Oracle PL/SQL
WebNEXUS INNOVATE PTE. LTD. Singapore, Singapore2 weeks agoBe among the first 25 applicantsNo longer accepting applications. ) Strong in writing complex SQL queries, PLSQL stored procedures, events and triggers etc.., Able to fine tune the existing SQLs/Stored procedures. Able to analyze and understand current database design … WebA DML trigger is created on either a table or view, and its triggering event is composed of the DML statements DELETE, INSERT, and UPDATE. To create a trigger that fires in response to a MERGE statement, create triggers on the INSERT and UPDATE … Step 3: Create a PL/SQL Package to Set the Application Context; Step 4: Create … Step 1: Install and Configure the UTL_MAIL PL/SQL Package; Step 2: Create an … What is a Package? A package is a schema object that groups logically related … WebThe data server supports row-level and statement-level triggers within a PL/SQL context. A row-level trigger fires once for each row that is affected by a triggering event. For … csf porsche 911