🕵️♀️ Task
The count method allows us to calculate the specific number of records that exist within an ActiveRecord::Relation.
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| id | title | year | duration | description | image | director_id |
|---|
| id | name | dob | bio | image |
|---|
| id | name | dob | bio | image |
|---|---|---|---|---|
| 384 | Mary Treen | 1907-03-27 | About as reliable as one co... | |
| 385 | Virginia Patton | 1926-06-25 | Born and raised in Portland... | |
| 386 | Anthony Perkins | 1932-04-04 | http://ia.media-imdb.com/im... | |
| 565 | James Tolkan | 1931-06-20 | Fiery, forceful and intimid... | http://ia.media-imdb.com/im... |
| 566 | J.J. Cohen | 1965-06-22 | http://ia.media-imdb.com/im... | |
| 387 | Vera Miles | 1929-08-23 | Born in Boise City, Oklahom... | http://ia.media-imdb.com/im... |
| 388 | John Gavin | 1931-04-08 | John Gavin, the American fi... | http://ia.media-imdb.com/im... |
| 389 | Janet Leigh | 1927-07-06 | Janet Leigh was born Jeanet... | http://ia.media-imdb.com/im... |
| id | actor_id | movie_id | name |
|---|---|---|---|
| 384 | 344 | 27 | Marion Ravenwood |
| 385 | 345 | 27 | Dr. René Belloq |
| 386 | 346 | 27 | Major Arnold Toht |
| 387 | 347 | 27 | Sallah |
| 388 | 348 | 27 | Dr. Marcus Brody |
| 389 | 349 | 27 | Satipo |
| 390 | 350 | 27 | Colonel Dietrich |
| 391 | 351 | 27 | Gobler |
Count how many records are in the customers table.
Customer.all.count
=> 327
Count how many records are in the products table.
Product.all.count
=> 183946