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.
The noun SPINDLE has 3 senses: 1. (biology) tiny fibers that are seen in cell division; the fibers radiate from two poles and meet at the equator in the middle. 2. any of various rotating shafts that serve as axes for larger rotating parts. 3. a stick or pin used to twist the yarn in spinning.. (biology) tiny fibers that are seen in cell division; the fibers radiate from two poles and meet at the equator in the middle. 2. any of various rotating shafts that serve as axes for larger rotating parts.