介绍
做数据分析的时候，经常会用到hive -e "sql" > xxx.txt或者最原始的hive命令行来获得查询结果，然后再将查询结果放到Excel等工具中，但是如果查询的字段太多，这时候将查询结果放到Excel会经常会碰到错位问题，很是头疼.
解决方案一：借助linux管道替换输出分隔符
样例如下：
# 方法一：sed hive -e "select * from db.table_name" | sed 's/\t/,/g' > ./abc.txt # 方法二：tr hive -e "select * from db.table_name" | tr "\t" ","
结果查看如下：
$ cat abc.txt
解决方案二：借助Hive的insert语法
代码如下：
insert overwrite local directory 'path' row format delimited fields terminated by ',' select xxxx from xxxx;
上面的sql将会把查询结果写到指定目录中，字段之间以‘,’分隔
结果如下：
$ ls path000000_0
官方介绍：
Standard syntax:INSERT OVERWRITE [LOCAL] DIRECTORY directory1[ROW FORMAT row_format] [STORED AS file_format] (Note: Only available starting with Hive0.11.0)
SELECT ... FROM ... Hive extension (multiple inserts):FROM from_statementINSERT OVERWRITE [LOCAL] DIRECTORY directory1 select_statement1[INSERT OVERWRITE [LOCAL] DIRECTORY directory2 select_statement2] ...row_format : DELIMITED [FIELDS TERMINATED BY char [ESCAPED BY char]] [COLLECTION ITEMS TERMINATED BY char] [MAP KEYS TERMINATED BY char] [LINES TERMINATED BY char][NULL DEFINED AS char] (Note: Only available starting with Hive0.13)
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