Using Aliases : alias column « Select Query « Oracle PL / SQL

1. Oracle PL / SQL
2. Select Query
3. alias column

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.

   
  

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