Hive 表数据加载给出 NULL 值

Question

Select * from movierating 将 NULL 值作为结果。

我在下面尝试过创建表查询：

CREATE TABLE movierating(id INT, movieid INT, rating INT, time string);
CREATE TABLE movierating(id INT, movieid INT, rating INT, time string) ROW FORMAT DELIMITED FIELDS TERMINATED BY ' ' stored as textfile;

尝试以下加载查询：

load data local inpath '/tmp/Movie-rating.txt' into table movierating;
load data local inpath '/tmp/Movie-rating.txt' OVERWRITE into table movierating;

数据到“Movie-rating.txt”文件中：（分隔符是制表符）

1     123      3   881250949   
2     125      4   881250123

Answer 1

对于制表符分隔的数据，使用'\t' 作为字段分隔符：

CREATE TABLE movierating(id int,movieid int,rating int,time string) 
ROW FORMAT DELIMITED 
FIELDS TERMINATED BY  '\t' LINES TERMINATED BY '\n' 
STORED AS TEXTFILE;