备份指定数据库的所有表的建表语句
1.将hback.sh拷贝到线上机器目录，脚本参数:database name，运行生成建表脚本：hql
./hback.sh 91pc
2.将生成的hql脚本放到线下机器，执行。自动创建备份了的表
./hql
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EdwardsBean/hive-table-backup
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It's used to back up tables in hive database.after run hbash.sh databasename, automatically generate shell script hql.run ./hql to import hive table.
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