sql - can we keep same password for mysql and for some specific databse? -

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we use different password specific database , mysql.for instance, root user password 'root' , have database password 'root', possible use same password?

if have same user (same username , password) databases compromised if 1 application compromised since applications able query data databases. reason not using root when connecting applications not have less privileges, not having alter table right, application


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