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Categories / Oracle PLSQL / Select Query

 

Using Aliases

SQL> SQL> CREATE TABLE emp (   2     empID INT NOT NULL PRIMARY KEY,   3     Name      VARCHAR(50) NOT NULL); Table created. SQL> 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> SELECT Name AS empName, empID AS ID FROM emp; EMPNAME                                                    ID -------------------------------------------------- ---------- Tom                                                         1 Jack                                                        2 Mary                                                        3 Bill                                                        4 Cat                                                         5 Victor                                                      6 6 rows selected. SQL> SQL> drop table emp; Table dropped.