🕵️♀️ 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 |
|---|---|---|---|---|
| 536 | Mira McKinney | 1892-10-23 | Mira's father, William Mark... | |
| 537 | Murdock MacQuarrie | 1878-08-25 | ||
| 538 | Wilfred Lucas | 1871-01-30 | ||
| 539 | Edward LeSaint | 1870-12-13 | LeSaint started his stage c... | |
| 540 | Fred Malatesta | 1889-04-18 | ||
| 541 | Cary Grant | 1904-01-18 | Once told by an interviewer... | http://ia.media-imdb.com/im... |
| 542 | Eva Marie Saint | 1924-07-04 | She played two of the most ... | http://ia.media-imdb.com/im... |
| 562 | Wendie Jo Sperber | 1958-09-15 | Though she was known best f... | http://ia.media-imdb.com/im... |
| id | actor_id | movie_id | name |
|---|---|---|---|
| 553 | 495 | 39 | Maj. 'King' Kong |
| 554 | 496 | 39 | Russian Ambassador Alexi de... |
| 555 | 497 | 39 | Lt. Lothar Zogg |
| 556 | 498 | 39 | Miss Scott |
| 557 | 499 | 39 | Mr. Staines |
| 558 | 500 | 39 | Lt. Dietrich |
| 559 | 501 | 39 | Adm. Randolph |
| 560 | 502 | 39 | Lt. Kivel (as Glen Beck) |
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