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  • hive批量执行sql命令及使用小技巧

    root@hadoop-senior hive-0.13.1]$ bin/hive -help
    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)

    1.* bin/hive -e <quoted-query-string>
    eg:
    bin/hive -e "select * from db_hive.student ;"

    2.* bin/hive -f <filename>
    eg:
    $ touch hivef.sql
    select * from db_hive.student ;
    $ bin/hive -f /opt/datas/hivef.sql
    $ bin/hive -f /opt/datas/hivef.sql > /opt/datas/hivef-res.txt

    3.* bin/hive -i <filename>
    与用户udf相互使用

    4。在hive cli命令窗口中如何查看hdfs文件系统
    hive (default)> dfs -ls / ;

    5.在hive cli命令窗口中如何查看本地文件系统
    hive (default)> !ls /opt/datas ;

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  • 原文地址:https://www.cnblogs.com/royfans/p/7218856.html
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