Username Update from frank to franklin

Rename a User

Write a MySQL query to rename the user "frank" to "franklin".

Solution:

-- This command changes the username from 'frank' to 'franklin'
-- The host specification remains '%' (any host) for the renamed user
RENAME USER 'frank'@'%' TO 'franklin'@'%'; 

Explanation:

• Purpose of the Query:
• The goal is to update the username for an existing account.
• This demonstrates the RENAME USER statement to modify a user’s identifier.
• Key Components:
• RENAME USER : Specifies the action of renaming a user.
• 'frank'@'%' TO 'franklin'@'%' : Defines the old and new username along with the host.
• Real-World Application:
• Useful when correcting naming errors or during organizational changes.

Notes:

• Renaming a user does not alter the user's privileges.
• Ensure the new username is not already in use.

For more Practice: Solve these Related Problems:

• Write a MySQL query to rename the user "frank" to "franklin" while keeping the host unchanged.
• Write a MySQL query to rename a user "old_user" to "new_user" across multiple host entries.
• Write a MySQL query to rename a user with special characters in the username while preserving all privileges.
• Write a MySQL query to rename a user and then verify the change by listing all user accounts from the mysql.user table.

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