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MySQL MCP: ER_BAD_DB_ERROR Unknown database (fix MYSQL_DB or create it)

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Oct 3, 2026Sign in to save

Fixes the MySQL MCP server failing with ER_BAD_DB_ERROR: Unknown database. Auth succeeded but the MYSQL_DB name does not exist on the server. The fix is creating the database or correcting the name.…

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MySQL MCP: ER_ACCESS_DENIED_ERROR Access denied for user (check MYSQL_USER/PASS)

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Oct 3, 2026Sign in to save

Fixes the MySQL MCP server failing with ER_ACCESS_DENIED_ERROR: Access denied for user. The cause is wrong credentials in the server env (MYSQL_USER / MYSQL_PASS) or the user lacking rights from the…

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