hostname.err
文件中,或者可以通过SQL命令SHOW ENGINE INNODB STATUS;
查看InnoDB引擎的状态和最近的事务信息。hostname.err
文件中,或者可以通过SQL命令SHOW ENGINE INNODB STATUS;
查看InnoDB引擎的状态和最近的事务信息。sql,SELECT table_schema AS 'Database', , table_name AS 'Table', , round(((data_length + index_length) / 1024 / 1024), 2) AS 'Size (MB)' ,FROM information_schema.TABLES ,ORDER BY (data_length + index_length) DESC;,
``python,from mrjob.job import MRJob,,class MRWordFrequencyCount(MRJob):,, def mapper(self, _, line):, for word in line.split():, yield word, 1,, def reducer(self, key, values):, yield key, sum(values),,if __name__ == '__main__':, MRWordFrequencyCount.run(),
``,,这段代码使用Python和mrjob库实现了一个简单的MapReduce程序,用于统计文本中每个单词的出现频率。bash,mysqldump -u username -p database_name > export_file.sql,
`,导入数据库脚本的命令是:,
`bash,mysql -u username -p database_name< export_file.sql,
``mysqldump
命令导出数据库。,``,mysqldump -u用户名 -p密码 数据库名 > 导出的文件名.sql,
``port
参数,然后重启服务。Powered By Z-BlogPHP 1.7.3