mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| sguildb            |
| test               |
+--------------------+
4 rows in set (0.00 sec)

mysql> use sguildb;
Database changed
mysql> SELECT sid FROM sensor WHERE hostname='ciscoE1';
+-----+
| sid |
+-----+
|   1 |
+-----+
1 row in set (0.00 sec)

mysql>