Question

首先请原谅，如果这个问题非常规律，我对HIVE非常陌生，并且我会亲自动手。我需要在comma（'，'）delimeter的帮助下将数据插入表格列的位置，下面是一个示例条目：

列标题：Name,status,location

示例数据：Arverne,closed,"312 Beach 54 Street Arverne,NY 11692 (40.59428994144626, -73.78442865540268)"

问题是当我尝试FIELDS TERMINATED BY'，'作为位置时，只能获取“312 Beach 54 Street Arverne ，但要求是获取 312 Beach 54 Street Arverne，NY 11692（40.59428994144626，-73.78442865540268）

 create table library(name string,Location string) row format delimited
 fields terminated by ','  stored as TextFile;

Answer 1

1。

tblproperties（＆＃39; serialization.last.column.takes.rest＆＃39; =＆＃39; true＆＃39;）

create external table library (Name string,status string,location string)
row format delimited
fields terminated by ','
tblproperties ('serialization.last.column.takes.rest'='true')    
;

select * from library
;

+---------+--------+---------------------------------------------------------------------------------+
|  name   | status |                                    location                                     |
+---------+--------+---------------------------------------------------------------------------------+
| Arverne | closed | "312 Beach 54 Street Arverne,NY  11692 (40.59428994144626, -73.78442865540268)" |
+---------+--------+---------------------------------------------------------------------------------+

2

<强> OpenCSVSerde

https://cwiki.apache.org/confluence/display/Hive/CSV+Serde
https://github.com/ogrodnek/csv-serde

默认服务属性

create external table library (Name string,status string,location string)
row format serde 'org.apache.hadoop.hive.serde2.OpenCSVSerde'
stored as textfile
;

select * from library
;

+---------+--------+-------------------------------------------------------------------------------+
|  name   | status |                                   location                                    |
+---------+--------+-------------------------------------------------------------------------------+
| Arverne | closed | 312 Beach 54 Street Arverne,NY  11692 (40.59428994144626, -73.78442865540268) |
+---------+--------+-------------------------------------------------------------------------------+

显式SerDe属性

create external table library (Name string,status string,location string)
row format serde 'org.apache.hadoop.hive.serde2.OpenCSVSerde'
with serdeproperties 
(
    'separatorChar' = ','
   ,'quoteChar'     = '"'
   ,'escapeChar'    = '\\'
)  
stored as textfile
;

select * from library
;

+---------+--------+-------------------------------------------------------------------------------+
|  name   | status |                                   location                                    |
+---------+--------+-------------------------------------------------------------------------------+
| Arverne | closed | 312 Beach 54 Street Arverne,NY  11692 (40.59428994144626, -73.78442865540268) |
+---------+--------+-------------------------------------------------------------------------------+

如何避免字符串

1 个答案:

1。

2