Alter table to add date type column : Add Column « Table « Oracle PL / SQL

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Oracle PL / SQL » Table » Add Column 
Alter table to add date type column
  
SQL>
SQL> CREATE TABLE EMP(
  2      EMPNO NUMBER(4NOT NULL,
  3      ENAME VARCHAR2(10),
  4      JOB VARCHAR2(9),
  5      MGR NUMBER(4),
  6      HIREDATE DATE,
  7      SAL NUMBER(72),
  8      COMM NUMBER(72),
  9      DEPTNO NUMBER(2)
 10  );

Table created.



SQL> INSERT INTO EMP VALUES(2'Jack', 'Tester', 6,TO_DATE('20-FEB-1981', 'DD-MON-YYYY'), 160030030);

row created.

SQL> INSERT INTO EMP VALUES(3'Wil', 'Tester', 6,TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 125050030);

row created.

SQL> INSERT INTO EMP VALUES(4'Jane', 'Designer', 9,TO_DATE('2-APR-1981', 'DD-MON-YYYY'), 2975, NULL, 20);

row created.

SQL> INSERT INTO EMP VALUES(5'Mary', 'Tester', 6,TO_DATE('28-SEP-1981', 'DD-MON-YYYY'), 1250140030);

row created.

SQL> INSERT INTO EMP VALUES(6'Black', 'Designer', 9,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);

row created.

SQL> INSERT INTO EMP VALUES(7'Chris', 'Designer', 9,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);

row created.

SQL> INSERT INTO EMP VALUES(8'Smart', 'Helper', 4,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);

row created.

SQL> INSERT INTO EMP VALUES(9'Peter', 'Manager', NULL,TO_DATE('17-NOV-1981', 'DD-MON-YYYY'), 5000, NULL, 10);

row created.

SQL> INSERT INTO EMP VALUES(10'Take', 'Tester', 6,TO_DATE('8-SEP-1981', 'DD-MON-YYYY'), 1500030);

row created.



SQL> INSERT INTO EMP VALUES(13'Fake', 'Helper', 4,TO_DATE('3-DEC-1981', 'DD-MON-YYYY'), 3000, NULL, 20);

row created.


SQL>
SQL>
SQL> ALTER TABLE emp ADD register_date DATE;

Table altered.

SQL>
SQL>
SQL> drop table emp;

Table dropped.

   
    
  
Related examples in the same category
1.Add a char type column to a table
2.Add a date type column to a table
3.Alter table: add a column to an existing table
4.Add two columns to a table
5.Alter a table to add two columns and use select to check
6.Alter table to add two columns and then drop them
7.Alter table to add a column and then add constraint to it
8.Alter table to add a column and then add 'check' constraint to it
9.Alter table to add a primary key
10.Alter table to add varray type column
11.Add more columns
12.Add new column with default value and not null
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