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Field: ÁеÄÃû³Æ

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CREATE TABLE customers (
  id INT NOT NULL AUTO_INCREMENT,
  name VARCHAR(255) NOT NULL,
  email VARCHAR(255) UNIQUE,
  phone_number VARCHAR(20)
);

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Field       Type       Null    Key     Default  Extra
id          int         NO      PRI     NULL     auto_increment
name        varchar(255)  NO      MUL     NULL     
email       varchar(255)  NO      UNI     NULL     
phone_number varchar(20)  YES     MUL     NULL     

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