Column Headings for calculated column

  
SQL>
SQL> CREATE TABLE EMP (EMPNO NUMBER(4) NOT NULL,
  2                    ENAME VARCHAR2(10),
  3                    JOB VARCHAR2(9),
  4                    MGR NUMBER(4),
  5                    HIREDATE DATE,
  6                    SAL NUMBER(7, 2),
  7                    COMM NUMBER(7, 2),
  8                    DEPTNO NUMBER(2));

Table created.

SQL>
SQL> INSERT INTO EMP VALUES (7369, 'SMITH', 'CLERK',    7902, TO_DATE('17-DEC-1980', 'DD-MON-YYYY'), 800, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7499, 'ALLEN', 'SALESMAN', 7698, TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 1600, 300, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7521, 'WARD',  'SALESMAN', 7698, TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7566, 'JONES', 'MANAGER',  7839, TO_DATE('2-APR-1981',  'DD-MON-YYYY'), 2975, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7654, 'MARTIN', 'SALESMAN', 7698,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250, 1400, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7698, 'BLAKE', 'MANAGER', 7839,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7782, 'CLARK', 'MANAGER', 7839,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);

1 row created.

SQL> INSERT INTO EMP VALUES (7788, 'SCOTT', 'ANALYST', 7566,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7839, 'KING', 'PRESIDENT', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);

1 row created.

SQL> INSERT INTO EMP VALUES (7844, 'TURNER', 'SALESMAN', 7698,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500, 0, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7876, 'ADAMS', 'CLERK', 7788,TO_DATE('12-JAN-1983', 'DD-MON-YYYY'), 1100, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7900, 'JAMES', 'CLERK', 7698,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 950, NULL, 30);

1 row created.

SQL> INSERT INTO EMP VALUES (7902, 'FORD', 'ANALYST', 7566,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);

1 row created.

SQL> INSERT INTO EMP VALUES (7934, 'MILLER', 'CLERK', 7782,TO_DATE('23-JAN-1982', 'DD-MON-YYYY'), 1300, NULL, 10);

1 row created.

SQL>
SQL>
SQL>
SQL> select ename, sal, sal * 1.1 from emp;

ENAME             SAL    SAL*1.1
---------- ---------- ----------
SMITH             800        880
ALLEN            1600       1760
WARD             1250       1375
JONES            2975     3272.5
MARTIN           1250       1375
BLAKE            2850       3135
CLARK            2450       2695
SCOTT            3000       3300
KING             5000       5500
TURNER           1500       1650
ADAMS            1100       1210

ENAME             SAL    SAL*1.1
---------- ---------- ----------
JAMES             950       1045
FORD             3000       3300
MILLER           1300       1430

14 rows selected.

SQL>
SQL> select ename, sal, sal * 1.1 raise from emp;

ENAME             SAL      RAISE
---------- ---------- ----------
SMITH             800        880
ALLEN            1600       1760
WARD             1250       1375
JONES            2975     3272.5
MARTIN           1250       1375
BLAKE            2850       3135
CLARK            2450       2695
SCOTT            3000       3300
KING             5000       5500
TURNER           1500       1650
ADAMS            1100       1210

ENAME             SAL      RAISE
---------- ---------- ----------
JAMES             950       1045
FORD             3000       3300
MILLER           1300       1430

14 rows selected.

SQL>
SQL>
SQL> column ename   heading "Employee"
SQL> column sal     heading "Salary"
SQL> column raise   heading "Raise"
SQL>
SQL> select ename, sal, sal * 1.1 raise from emp;

Employee       Salary      Raise
---------- ---------- ----------
SMITH             800        880
ALLEN            1600       1760
WARD             1250       1375
JONES            2975     3272.5
MARTIN           1250       1375
BLAKE            2850       3135
CLARK            2450       2695
SCOTT            3000       3300
KING             5000       5500
TURNER           1500       1650
ADAMS            1100       1210

Employee       Salary      Raise
---------- ---------- ----------
JAMES             950       1045
FORD             3000       3300
MILLER           1300       1430

14 rows selected.

SQL>
SQL> drop table emp;

Table dropped.

SQL>

Related examples in the same category

1.	To_char function with alias column name
2.	Use column command to define column name before select statement
3.	TO_CHAR(last_stock_date, 'MM-DD-YYYY HH24:MI') with column alias
4.	Using Aliases
5.	Using Aliases with Simple Subqueries
6.	Using Aliasing in Equi-Joins
7.	Use table alias to reference column names

Column Headings for calculated column : alias column « Select Query « Oracle PL / SQL

Related examples in the same category