Hive Display Non Printable Characters

What are Non-Printable Characters?

When working with data in Hive, you may encounter non-printable characters that can cause issues with your queries and data analysis. Non-printable characters are characters that are not visible on the screen, but can still affect the way your data is processed. In this article, we will explore what non-printable characters are and how to handle them in Hive.

Non-printable characters can be introduced into your data through various means, such as data imports or user input. They can cause problems with data sorting, filtering, and aggregation, leading to incorrect results or errors. It is essential to identify and handle non-printable characters properly to ensure the accuracy and reliability of your data analysis.

Handling Non-Printable Characters in Hive

What are Non-Printable Characters? Non-printable characters include characters such as tabs, line breaks, and carriage returns. They can also include characters from other character sets, such as Unicode characters. In Hive, non-printable characters can be represented using escape sequences, such as '\t' for tabs and '\n' for line breaks. Understanding how to represent and handle non-printable characters is crucial for working with data in Hive.

Handling Non-Printable Characters in Hive To handle non-printable characters in Hive, you can use various techniques, such as using the 'regexp_replace' function to replace non-printable characters with printable characters or using the 'trim' function to remove non-printable characters from the beginning and end of strings. You can also use the 'chr' function to convert non-printable characters to their corresponding ASCII values. By using these techniques, you can effectively handle non-printable characters in Hive and improve the accuracy and reliability of your data analysis.