A WHERE clause that contains two expressions (conditions) : Where « Where Clause « SQL / MySQL






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  2. Where Clause
  3. Where

A WHERE clause that contains two expressions (conditions)

       
mysql>
mysql> CREATE TABLE Books
    -> (
    ->     BookID SMALLINT NOT NULL PRIMARY KEY,
    ->     BookName VARCHAR(40) NOT NULL,
    ->     Category VARCHAR(15),
    ->     InStock SMALLINT NOT NULL,
    ->     OnOrder SMALLINT NOT NULL
    -> );
Query OK, 0 rows affected (0.01 sec)

mysql> INSERT INTO Books VALUES
    -> (101, 'C: Writing on Writing', 'Nonfiction', 12, 13),
    -> (102, 'Oracle', 'Fiction', 17, 20),
    -> (103, 'Opera', 'Nonfiction', 23, 33),
    -> (104, 'Notebook', 'Nonfiction', 32, 12),
    -> (105, 'Pascal', 'Fiction', 6, 35),
    -> (106, 'One Hundred Years of Solitude', 'Fiction', 28, 14),
    -> (107, 'Where I\'m Calling From', NULL, 46, 3);
Query OK, 7 rows affected (0.00 sec)
Records: 7  Duplicates: 0  Warnings: 0

mysql>
mysql> SELECT BookName, Category, InStock, OnOrder
    -> FROM Books
    -> WHERE Category='Fiction' AND (InStock+OnOrder)>40
    -> ORDER BY BookName;
+-------------------------------+----------+---------+---------+
| BookName                      | Category | InStock | OnOrder |
+-------------------------------+----------+---------+---------+
| One Hundred Years of Solitude | Fiction  |      28 |      14 |
| Pascal                        | Fiction  |       6 |      35 |
+-------------------------------+----------+---------+---------+
2 rows in set (0.00 sec)

mysql>
mysql> drop table Books;
Query OK, 0 rows affected (0.00 sec)








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