Query regarding String and Varchar in Hive

0 votes

I want to create a table for some columns data from is in the form of characters, which of the String and Varchar would be preferred? If any difference while execution could you explain to me those?

Feb 19, 2019 in Big Data Hadoop by Sanam
319 views

1 answer to this question.

0 votes

Varchar datatype is also saved internally as a String. Now the Hive Varchar does not support vectorization. Vectorization allows Hive to process a batch of rows together instead of processing one row at a time. Operations are performed on the entire column vector which improves the instruction pipelines and cache usage.

answered Feb 19, 2019 by Omkar
• 69,000 points

Related Questions In Big Data Hadoop

0 votes
1 answer

Can you please help with Hive Query to get FirstName, MiddleName, LastName and Suffix from FullName in Hive. Thank you

Hey, You can get first name, middle name, ...READ MORE

answered May 15, 2019 in Big Data Hadoop by Gitika
• 26,270 points

edited May 15, 2019 by Gitika 368 views
0 votes
1 answer

Query regarding Temporary table's metadata in HIVE

Registered tables are not cached in memory. ...READ MORE

answered May 22, 2019 in Big Data Hadoop by Tina
106 views
0 votes
1 answer

How Impala is fast compared to Hive in terms of query response?

Impala provides faster response as it uses MPP(massively ...READ MORE

answered Mar 21, 2018 in Big Data Hadoop by nitinrawat895
• 10,870 points
506 views
0 votes
1 answer

How to convert a string to timestamp with milliseconds in Hive?

 concatenation of substrings using the following code: select ...READ MORE

answered Oct 31, 2018 in Big Data Hadoop by Neha
• 6,280 points
6,477 views
+1 vote
1 answer

Hadoop Mapreduce word count Program

Firstly you need to understand the concept ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 10,870 points
4,515 views
0 votes
1 answer

hadoop.mapred vs hadoop.mapreduce?

org.apache.hadoop.mapred is the Old API  org.apache.hadoop.mapreduce is the ...READ MORE

answered Mar 16, 2018 in Data Analytics by nitinrawat895
• 10,870 points
640 views
+1 vote
11 answers

hadoop fs -put command?

put syntax: put <localSrc> <dest> copy syntax: copyFr ...READ MORE

answered Dec 7, 2018 in Big Data Hadoop by Aditya
25,406 views
–1 vote
1 answer

Hadoop dfs -ls command?

In your case there is no difference ...READ MORE

answered Mar 16, 2018 in Big Data Hadoop by kurt_cobain
• 9,310 points
1,693 views
–1 vote
1 answer

Beeline and Hive Query Editor in Embedded mode

Running Hive client tools with embedded servers ...READ MORE

answered Dec 31, 2018 in Big Data Hadoop by Omkar
• 69,000 points
350 views
0 votes
1 answer

Hadoop Hive: How to split string in Hive?

You can use the split function along ...READ MORE

answered Nov 6, 2018 in Big Data Hadoop by Omkar
• 69,000 points
4,628 views