Posted: . At: 9:16 PM. This was 12 years ago. Post ID: 4444
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using the MySQL SELECT statement to only select certain records.

We are taking another look at our database table and we are wanting to only view records that match certain criteria. This is easy with the SELECT statement.

mysql> select * from operatingsystems where vendor in ("Microsoft","Mint");
+------+------------------------+---------+-----------+
| OsID | Name                   | Type    | vendor    |
+------+------------------------+---------+-----------+
|    1 | Windows 3.0            | Windows | Microsoft |
|    2 | Windows 3.1            | Windows | Microsoft |
|    3 | Windows `95            | Windows | Microsoft |
|    4 | Windows `98            | Windows | Microsoft |
|   21 | Linux Mint 8           | Linux   | Mint      |
|   22 | Linux Mint 9           | Linux   | Mint      |
|   23 | Linux Mint 10          | Linux   | Mint      |
|   24 | Linux Mint 12          | Linux   | Mint      |
|   25 | Linux Mint 13          | Linux   | Mint      |
|   29 | Windows 7              | Windows | Microsoft |
|   30 | Windows Vista Ultimate | Windows | Microsoft |
+------+------------------------+---------+-----------+
11 rows in set (0.00 sec)

Another example.

mysql> select * from operatingsystems where vendor in ('Redhat','Mandrake');
+------+--------------------+-------+----------+
| OsID | Name               | Type  | vendor   |
+------+--------------------+-------+----------+
|    5 | Redhat 6.2         | Linux | Redhat   |
|    7 | Mandrake Linux 9.0 | Linux | Mandrake |
|    8 | Mandrake Linux 9.2 | Linux | Mandrake |
+------+--------------------+-------+----------+
3 rows in set (0.00 sec)

This is how you use the SELECT statement to retrieve records from a MySQL database. This is a key skill in database management and it is important to master this.

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