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Which of these is not used to connect to the MySQL server?

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Which of these is not used to connect to the MySQL server?

(a) mysql

(b) mysqladmin

(c) mysqlcheck

(d) mysql_upgrade

I have been asked this question in an online interview.

Question is taken from MySQL Programs in portion MySQL Programming of MySQL

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Best answer
The correct option is (d) mysql_upgrade

The explanation: mysql_upgrade is used after a MySQL upgrade operation. It checks tables for incompatibilities and repairs them if necessary. It updates the grant tables with any changes that have been made in newer versions of MySQL.

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