If you want to count the number of rows, you can use the COUNT(*) function in the SELECT clause. The following tutorial exercise shows you some good examples:

SELECT COUNT(*) FROM ggl_links

GO

7

SELECT COUNT(*) FROM ggl_links

WHERE url LIKE '%glo%'

GO

3

So there are 7 rows in total in table "ggl_links", and 3 rows that have 'glo' as part of their url names.