compare varchar type value in where clause : Logical Operators « Select Query « Oracle PL / SQL

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Oracle PL / SQL » Select Query » Logical Operators 
compare varchar type value in where clause
  
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');

row created.

SQL> INSERT INTO purchase VALUES ('B',   75'14-JUL-03', 'BB');

row created.

SQL> INSERT INTO purchase VALUES ('C',   2,  '14-JUL-03', 'GA');

row created.

SQL> INSERT INTO purchase VALUES ('D',   8,  '15-JUL-03', 'GA');

row created.

SQL> INSERT INTO purchase VALUES ('A',   20'15-JUL-03', 'LB');

row created.

SQL> INSERT INTO purchase VALUES ('B',   2,  '16-JUL-03', 'CA');

row created.

SQL> INSERT INTO purchase VALUES ('C',   25'16-JUL-03', 'LB');

row created.

SQL> INSERT INTO purchase VALUES ('D',   2,  '17-JUL-03', 'BB');

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

rows selected.

SQL>
SQL>
SQL> DELETE FROM purchase
  2  WHERE product_name = 'A';

rows deleted.

SQL>
SQL> SELECT FROM purchase;

PRODUCT_NAME                QUANTITY PURCHASE_ SAL
------------------------- ---------- --------- ---
B                                 75 14-JUL-03 BB
C                                  2 14-JUL-03 GA
D                                  8 15-JUL-03 GA
B                                  2 16-JUL-03 CA
C                                 25 16-JUL-03 LB
D                                  2 17-JUL-03 BB

rows selected.

SQL>
SQL>
SQL> DROP TABLE purchase;

Table dropped.

SQL>

   
  
Related examples in the same category
1.Demo for Order of Precedence for Logical Operators
2.Compare Date type value
3.Not(condition1 and condition2)
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