Print PL/SQL

PL/SQL is a procedural language used for writing stored procedures, packages, and triggers in Oracle databases. The 'print' function is used in PL/SQL to display output values in the console.

Syntax

The syntax for the 'print' statement is as follows:

DBMS_OUTPUT.PUT_LINE ('output_value');

The 'output_value' can be a string, number, or variable that is calculated within the PL/SQL block.

Example

Here is an example of how to use the 'print' statement in PL/SQL:

DECLARE
  name VARCHAR2(20):= 'John';
BEGIN
  DBMS_OUTPUT.PUT_LINE('Hello ' || name || ', welcome to PL/SQL.');
END;

Output:

Hello John, welcome to PL/SQL.

In the above example, the 'print' statement displays the message in the console using the 'DBMS_OUTPUT.PUT_LINE' function. The message contains a concatenated string and a variable 'name' that was declared in the PL/SQL block.

Conclusion

The 'print' statement is an essential function in PL/SQL for displaying output values. It is used to verify the output of a stored procedure or to debug code. The syntax and usage are simple and straightforward, making it an effective tool for writing and testing PL/SQL code.