SQL - find records from one table which don't exist in another

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生来不讨喜
生来不讨喜 2020-11-21 22:44

I\'ve got the following two SQL tables (in MySQL):

Phone_book
+----+------+--------------+
| id | name | phone_number |
+----+------+--------------+
| 1  | J         


        
8条回答
  •  轻奢々
    轻奢々 (楼主)
    2020-11-21 22:57

    Alternatively,

    select id from call
    minus
    select id from phone_number
    

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