SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_schema.tables where table_schema = laravel_blog and table_name = migrations and table_type = 'BASE TABLE') code example

Example 1: SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_schema.tables where table_schema = ipris and table_name = migrations and table_type = 'BASE TABLE')

php artisan cache:clear 
php artisan config:clear

Example 2: Illuminate\Database\QueryException SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_schema.tables where table_schema = laravel and table_name = migrations and table_type = 'BASE TABLE')

You may have to specify a connection socket in your config or use 127.0.0.1 as your DB_HOST rather than localhost

Example 3: laravel SQLSTATE[HY000] [2002] No such file or directory (SQL: select * from information_schema.tables where table_schema = testDB and table_name = migrations and table_type = 'BASE TABLE')

'unix_socket' => env('DB_SOCKET', '/Applications/MAMP/tmp/mysql/mysql.sock'),

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Sql Example