关于Hive建表，参考官网：

https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-ManagedandExternalTables

• weblog表结构:

CREATE TABLE IF NOT EXISTS weblog(  
ip string ,  
time string ,  
req_url string ,  
status string ,  
size string   
)  
ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t' ;  

hive建表.png

• 数据如下：

61.135.216.104  [25/Sep/2013:00:10:10 +0800]    "GET /search-engine/thrift-framework-intro/feed/ HTTP/1.1"  304  160  
175.42.93.145   [25/Sep/2013:00:10:11 +0800]    "GET /mapreduce/hadoop-rumen-introduction HTTP/1.1" 301 427  
175.42.93.145   [25/Sep/2013:00:10:12 +0800]    "GET /mapreduce/hadoop-rumen-introduction/ HTTP/1.1"    200 20875

• 导入数据
  load data local inpath '/home/hadoop/data/weblog' into table weblog ;
  

  image.png

• 也可以像下面这样建表

create table weblog_1 as select ip,time,req_url from weblog; 启动了MR任务
create table weblog_2 like weblog;

image.png