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         Variable subsitution to apply to hive
                    commands. e.g. -d A=B or --define A=B
  --database       Specify the database to use
-e           SQL from command line
-f                 SQL from files
-H,--help                  Print help information
-h                connecting to Hive Server on remote host
  --hiveconf            Use value for given property
  --hivevar         Variable subsitution to apply to hive
                  commands. e.g. --hivevar A=B
-i              Initialization SQL file
-p                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
eg:
bin/hive -e "select * from db_hive.student ;"

2.* bin/hive -f
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
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 ;

转载于:https://www.cnblogs.com/royfans/p/7218856.html

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