SQL>
SQL> CREATE TABLE purchase (
2 product_name VARCHAR2(25),
3 quantity NUMBER(4,2),
4 purchase_date DATE,
5 salesperson VARCHAR2(3)
6 );
Table created.
SQL>
SQL> INSERT INTO purchase VALUES ('A', 1, '14-JUL-03', 'CA');
1 row created.
SQL> INSERT INTO purchase VALUES ('B', 75, '14-JUL-03', 'BB');
1 row created.
SQL> INSERT INTO purchase VALUES ('C', 2, '14-JUL-03', 'GA');
1 row created.
SQL> INSERT INTO purchase VALUES ('D', 8, '15-JUL-03', 'GA');
1 row created.
SQL> INSERT INTO purchase VALUES ('A', 20, '15-JUL-03', 'LB');
1 row created.
SQL> INSERT INTO purchase VALUES ('B', 2, '16-JUL-03', 'CA');
1 row created.
SQL> INSERT INTO purchase VALUES ('C', 25, '16-JUL-03', 'LB');
1 row created.
SQL> INSERT INTO purchase VALUES ('D', 2, '17-JUL-03', 'BB');
1 row created.
SQL>
SQL> SELECT * FROM purchase;
PRODUCT_NAME QUANTITY PURCHASE_ SAL
------------------------- ---------- --------- ---
A 1 14-JUL-03 CA
B 75 14-JUL-03 BB
C 2 14-JUL-03 GA
D 8 15-JUL-03 GA
A 20 15-JUL-03 LB
B 2 16-JUL-03 CA
C 25 16-JUL-03 LB
D 2 17-JUL-03 BB
8 rows selected.
SQL>
SQL> UPDATE purchase
2 SET product_name = 'AA'
3 WHERE product_name = 'A';
2 rows updated.
SQL>
SQL>
SQL> DROP TABLE purchase;
Table dropped.