SQL> CREATE TABLE emp (
2 id NUMBER PRIMARY KEY,
3 fname VARCHAR2(50),
4 lname VARCHAR2(50)
5 );
Table created.
SQL>
SQL> INSERT INTO emp (id, fname, lname)VALUES (1, 'A', 'B');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (2, 'C', 'D');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (3, 'Enn', 'F');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (4, 'G', 'H');
1 row created.
SQL> INSERT INTO emp (id, fname, lname)VALUES (5, 'G', 'Z');
1 row created.
SQL>
SQL> CREATE TABLE myTable
2 (num_col NUMBER
3 ,char_col VARCHAR2(60));
Table created.
SQL>
SQL>
SQL> CREATE OR REPLACE FUNCTION FullName (p_empID emp.ID%TYPE) RETURN VARCHAR2 IS
2
3 v_Result VARCHAR2(100);
4 BEGIN
5 SELECT fname || ' ' || lname INTO v_Result FROM emp WHERE ID = p_empID;
6
7 RETURN v_Result;
8 END FullName;
9 /
Function created.
SQL>
SQL>
SQL> SELECT FullName(ID) full_name FROM emp WHERE ID < 10 ORDER BY full_name;
FULL_NAME
--------------------------------------------------------------------------------
A B
C D
Enn F
G H
G Z
5 rows selected.
SQL>
SQL>
SQL> drop table emp;
Table dropped.
SQL> drop table myTable;
Table dropped.