大数据：Impala：表操作

 创建表

•  外表创建语句

• 说明：去除掉回车，空格间隔，自动换行
  ----------------------------------------------------------------------------
  CREATE EXTERNAL TABLE 数据库名.新表名 (字段名1 类型,字段名n 类型) 
  		ROW FORMAT 
  				DELIMITED FIELDS TERMINATED BY '\u0001' 
  				LINES TERMINATED BY '\n' 
  				STORED AS TEXTFILE 
  				LOCATION '存放地址'
  
  ----------------------------------------------------------------------------				
  create external table 数据库名.新表名 (字段名1 类型,字段名n 类型) 
  		row format 
  				delimited fields terminated by '\u0001' 
  				lines terminated by '\n' 
  				stored as textfile 
  				location '存放地址'

• 內表创建语句

• 说明：去除掉回车，空格间隔，自动换行
  ----------------------------------------------------------------------------
  CREATE TABLE 数据库名.新表名 (字段名1 类型,字段名n 类型) 
  		ROW FORMAT 
  				DELIMITED FIELDS TERMINATED BY '\u0001' 
  				LINES TERMINATED BY '\n' 
  				STORED AS PARQUET
  
  ----------------------------------------------------------------------------				
  create table 数据库名.新表名 (字段名1 类型,字段名n 类型) 
  		row format 
  				delimited fields terminated by '\u0001' 
  				lines terminated by '\n' 
  				stored as parquet