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My MySQL server sometimes refuses queries and returns the message Errorcode: 13. What does this mean?

April 26, 2017mean message MySQL queries returns server

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My MySQL server sometimes refuses queries and returns the message Errorcode: 13. What does this mean?

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This can happen due to a MySQL bug when having database / table names with upper case characters although lower_case_table_names is set to 1. To fix this, turn off this directive, convert all database and table names to lower case and turn it on again. Alternatively, there’s a bug-fix available starting with MySQL 3.23.56 / 4.0.11-gamma.