🕵️♀️ 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 |
|---|---|---|---|---|
| 633 | Alec Baldwin | 1958-04-03 | Raven-haired, suavely hands... | http://ia.media-imdb.com/im... |
| 634 | Kevin Corrigan | 1969-03-27 | A native of the Bronx, New ... | http://ia.media-imdb.com/im... |
| 635 | James Badge Dale | 1978-05-01 | http://ia.media-imdb.com/im... | |
| 636 | David O'Hara | 1965-07-09 | David O'Hara was born in Gl... | http://ia.media-imdb.com/im... |
| 637 | Robert Wahlberg | 1967-12-18 | http://ia.media-imdb.com/im... | |
| 638 | Kristen Dalton | 1966-02-14 | http://ia.media-imdb.com/im... | |
| 639 | Ellen Widmann | 1894-12-15 | ||
| 640 | Inge Landgut | 1922-11-23 |
| id | actor_id | movie_id | name |
|---|---|---|---|
| 633 | 570 | 45 | Jedediah Leland |
| 634 | 571 | 45 | Susan Alexander Kane |
| 635 | 572 | 45 | Mary Kane |
| 636 | 573 | 45 | Emily Monroe Norton Kane |
| 637 | 574 | 45 | James W. Gettys |
| 638 | 575 | 45 | Herbert Carter |
| 639 | 576 | 45 | Mr. Bernstein |
| 640 | 577 | 45 | Jerry Thompson |
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