hive简述

显示表头，当前终端有效

set hive.cli.print.header=true;

查看表结构

desc table;

详细的表结构

desc formatted table;

删除表

drop table tablename;

帮助命令

root@ubuntu:/app/bigdata/hive-0.13.0/bin# ./hive -help
16/08/18 18:40:24 WARN conf.HiveConf: DEPRECATED: hive.metastore.ds.retry.* no longer has any effect.  Use hive.hmshandler.retry.* instead
usage: hive
 -d,--define <key=value>          Variable subsitution to apply to hive
                                  commands. e.g. -d A=B or --define A=B
    --database <databasename>     Specify the database to use
 -e <quoted-query-string>         SQL from command line
 -f <filename>                    SQL from files
 -H,--help                        Print help information
 -h <hostname>                    connecting to Hive Server on remote host
    --hiveconf <property=value>   Use value for given property
    --hivevar <key=value>         Variable subsitution to apply to hive
                                  commands. e.g. --hivevar A=B
 -i <filename>                    Initialization SQL file
 -p <port>                        connecting to Hive Server on port number
 -S,--silent                      Silent mode in interactive shell
 -v,--verbose                     Verbose mode (echo executed SQL to the
                                  console)

root@ubuntu:/app/bigdata/hive-0.13.0/bin# ./hive --help

Usage ./hive <parameters> --service serviceName <service parameters>
Service List: beeline cli help hiveserver2 hiveserver hwi jar lineage metastore metatool orcfiledump rcfilecat schemaTool version 
Parameters parsed:
  --auxpath : Auxillary jars 
  --config : Hive configuration directory
  --service : Starts specific service/component. cli is default
Parameters used:
  HADOOP_HOME or HADOOP_PREFIX : Hadoop install directory
  HIVE_OPT : Hive options
For help on a particular service:
  ./hive --service serviceName --help
Debug help:  ./hive --debug --help