The result of the above SQL statement will be the number 3, because the customer Smith has made 3 orders in total. If you don't specify a WHERE clause when using COUNT, your statement will simply return the total number of rows in the table, which in our case is 7:
Uses of Sleep Spindles Edit. Sleep spindles are one of several measures employed by the brain to keep a sleeper in an unconscious state. This pattern is produced during sleep to inhibit the processing of unnecessary information, which would especially interrupt stage 2 sleep.
Spindle (textiles) Modern top-whorl drop spindles. The hook at the top allows these to be suspended and the cop is built up below the disk-shaped whorl in a conical shape. A modern Turkish spindle is an example of a low-whorl suspended spindle where the whorl is made up of interlocking arms. Here the cop is wound around the arms to form a ball. A spindle is a straight spike usually made from wood used for spinning, twisting fibers such as wool, flax, hemp, cotton into yarn.