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>