Oracle PL/SQL
Oracle PL/SQL
Output:
Click on RUN button to see the output
PL/SQL Online Compiler
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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;