Hive External table-CSV File- Header row

Question

Below is the hive table i have created:

CREATE EXTERNAL TABLE Activity (
  column1 type, 

  column2 type
)
ROW FORMAT DELIMITED FIELDS TERMINATED          


        

Answer 1

Lets say you want to load csv file like below located at /home/test/que.csv

1,TAP (PORTUGAL),AIRLINE
2,ANSA INTERNATIONAL,AUTO RENTAL
3,CARLTON HOTELS,HOTEL-MOTEL

Now, we need to create a location in HDFS that holds this data.

hadoop fs -put /home/test/que.csv /user/mcc

Next step is to create a table. There are two types of them to choose from. Refer this for choosing one.

Example for External Table.

create external table industry_ 
(
MCC string ,
MCC_Name string,
MCC_Group string
)       
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
STORED AS TEXTFILE
LOCATION '/user/mcc/'
tblproperties ("skip.header.line.count"="1");