Using Output Parameters : Parameter OUT « Stored Procedure Function « Oracle PL / SQL

1. Oracle PL / SQL
2. Stored Procedure Function
3. Parameter OUT

Using Output Parameters

    
SQL>
SQL> CREATE TABLE emp (
  2     empID INT NOT NULL PRIMARY KEY,
  3     Name      VARCHAR(50) NOT NULL);

Table created.

SQL> INSERT INTO emp (empID,Name) VALUES (1,'Tom');

1 row created.

SQL> INSERT INTO emp (empID,Name) VALUES (2,'Jack');

1 row created.

SQL> INSERT INTO emp (empID,Name) VALUES (3,'Mary');

1 row created.

SQL> INSERT INTO emp (empID,Name) VALUES (4,'Bill');

1 row created.

SQL> INSERT INTO emp (empID,Name) VALUES (5,'Cat');

1 row created.

SQL> INSERT INTO emp (empID,Name) VALUES (6,'Victor');

1 row created.

SQL>
SQL> CREATE OR REPLACE PROCEDURE GetempName(i_empID IN INT,o_empName OUT VARCHAR)
  2  AS
  3  BEGIN
  4     SELECT Name INTO o_empName FROM emp
  5     WHERE empID = i_empID;
  6  END;
  7  /

SP2-0804: Procedure created with compilation warnings

SQL> SET SERVEROUT ON
SQL> DECLARE
  2     empName VARCHAR(50);
  3  BEGIN
  4     GetempName(3, empName);
  5     dbms_output.put_line(empName);
  6  END;
  7  /
Mary

PL/SQL procedure successfully completed.

SQL>
SQL> drop table emp;

Table dropped.

SQL>

   
    
    
    
  

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