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mysql> show   variables   like   "%char%";
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| Variable_name            | Value
                                |
+--------------------------+--------
--------------------------------+
| character_set_client     | utf8
                                |
| character_set_connection | utf8
                                |
| character_set_database   | utf8
                                |
| character_set_filesystem | binary
                                |
| character_set_results    | utf8
                                |
| character_set_server     | utf8
                                |
| character_set_system   &


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mysqldump -u username -p password –all-databases > all.sql
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½øÈëmysql -u username -p password
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