顯示錶頭,當前終端有效sql
set hive.cli.print.header=true;
查看錶結構shell
desc table;
詳細的表結構ubuntu
desc formatted table;
刪除表ruby
drop table tablename;
幫助命令markdown
root@ubuntu:/app/bigdata/hive-0.13.0/bin# ./hive --helproot@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)
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