DECLARE
--Declare a record type
TYPE employee_record IS RECORD
( employee_id NUMBER,
first_name VARCHAR2(50),
last_name VARCHAR2(50),
salary NUMBER);
--Declare a record variable
emp employee_record;

BEGIN
-- Initialize record fields
emp.employee_id := 1;
emp.first_name := 'John';
emp.last_name := 'Doe';
emp.salary := 50000;
--Access and manipulate record fields
DBMS_OUTPUT.PUT_LINE('Employee Details:');
DBMS_OUTPUT.PUT_LINE('Employee ID: ' || emp.employee_id);
DBMS_OUTPUT.PUT_LINE('Name: ' || emp.first_name || ' ' || emp.last_name);
DBMS_OUTPUT.PUT_LINE('Salary:Rs' || emp.salary);
--Updating salary
emp.salary := emp.salary + 5000;
DBMS_OUTPUT.PUT_LINE('Updated Salary:Rs' || emp.salary);
END;
by

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About PL/SQL

PL/SQL is procedural extension for SQL created by Oracle. It is by default embedded into the Oracle Database. PL/SQL program units are compiled and stored inside the Oracle Database which results in optimal execution times as the PL/SQL and SQL run within the same server process.

Syntax help

Following is the syntax structure for the PL/SQL code blocks

DECLARE 
   <declarations section> 
BEGIN 
   <executable command(s)>
EXCEPTION 
   <exception handling> 
END;

Example

DECLARE 
   message  varchar2(100):= 'Hello, World!'; 
BEGIN 
   dbms_output.put_line(message); 
END; 
/

Named procedures

CREATE OR REPLACE FUNCTION 
hello_user
   (user_name IN VARCHAR2) 
    RETURN VARCHAR2
IS
BEGIN
   RETURN 'Hello ' || user_name;
END hello_user;
/

BEGIN
   dbms_output.put_line(hello_user('Peter'));
END;
/

Exception handling

BEGIN
  DBMS_OUTPUT.put_line (1/0);
EXCEPTION
  WHEN OTHERS
  THEN
    DBMS_OUTPUT.put_line ('error is: ' || SQLERRM);
END;