Use dbname;   //庫名

Show tables;   //檢視所有的表

Show partitions 表名;   //檢視分割槽 dt

select * from dbName.tableName where id=6784500 and dt='2018-07-24';   

quit;  //退出

用"use 庫名; show create table 表名;" 來檢視一個已經存在的表，檢視location路徑

hadoop fs -ls location路徑    

dl_diff_sku_latest=`hadoop fs -ls /dl_diff_sku/*.latest| tail -n 1 | awk -F'/' '{print $NF}' | awk -F'.' '{print $1}'`
hadoop fs -get /dl_diff_sku/$dl_diff_sku_latest

CREATE TABLE `recommend_promotion_address`(
`id` bigint, 
`x` string, 
`y` string)
PARTITIONED BY ( 
`dt` string)
ROW FORMAT DELIMITED 
FIELDS TERMINATED BY '\t' 
STORED AS INPUTFORMAT 
'org.apache.hadoop.mapred.TextInputFormat' 
OUTPUTFORMAT 
'org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
LOCATION
'hdfs://ns1013