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mysql_query("set names 'utf8'");
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mysql> SET character_set_client = x;
mysql> SET character_set_results = x;
mysql> SET character_set_connection = x;
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mysql> show variables;
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mysql> show global status;
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mysql> show variables like '%slow%';  
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use mysql
update user set Password=password('newpassword') where User='root';
flush privileges;
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MYSQLADMIN -u root -p PASSWORD mypasswd
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 /tmp/ccBBJEB8.o: In function `ping_sql':
pingsql.c:(.text+0x7c): undefined reference to `mysql_init'
pingsql.c:(.text+0xe1): undefined reference to `mysql_real_connect'
pingsql.c:(.text+0xff): undefined reference to `mysql_close'
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