MySQL Brukeradministrasjon

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Questions and Answers

Kvar vert all informasjon om brukarnamn, passord og operasjonstilgang til databasen lagret når det gjeld MySQL?

  • I tabellen 'passwords' i databasen 'mysql'
  • I tabellen 'user' i databasen 'mysql' (correct)
  • I tabellen 'database' i databasen 'user'
  • I tabellen 'user' i databasen 'database'

Kva SQL-operasjon skal du bruke for å opprette ein ny brukar i MySQL?

  • UPDATE USER
  • INSERT INTO
  • ADD NEW USER
  • CREATE USER (correct)

Kva anna SQL-operasjon kan du bruke for å endre brukarnamnet til ein eksisterande brukar i MySQL?

  • RENAME USER (correct)
  • MODIFY USER
  • UPDATE USER
  • CHANGE USERNAME

Kva er ein tryggare måte å leggje til ein ny brukar i MySQL enn å leggje til ein ny rad direkte i tabellen?

<p>Bruke INSERT-kommandoen med parameterisert spørring (D)</p> Signup and view all the answers

Kva er rett syntaks for å endre passordet til brukaren 'zhangsan' til '123456' i MySQL?

<p>SET PASSWORD FOR zhangsan = '123456' (D)</p> Signup and view all the answers

如何查看当前 MySQL 数据库一共有多少用户?

<p>使用 SELECT COUNT(*) FROM user; (A)</p> Signup and view all the answers

下列关于新增用户的说法,哪一项是正确的?

<p>通过执行 CREATE USER [user_name] IDENTIFIED BY [user_pwd]; 来新增用户。 (B)</p> Signup and view all the answers

什么是修改用户名称的正确语法?

<p>RENAME USER [user_name] TO [new_user_name]; (D)</p> Signup and view all the answers

为什么不建议直接在 MySQL 数据库中插入一条记录来新增用户?

<p>可能会对 MySQL 服务器造成伤害。 (D)</p> Signup and view all the answers

以下哪个语句是正确修改 'zhangsan' 用户密码为 '123456' 的语法?

<p>ALTER USER zhangsan IDENTIFIED BY '123456'; (B)</p> Signup and view all the answers

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