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Editor to share with you the introduction of Sqoop Mysql data to Hive ASCII how to do, I believe that most people do not understand, so share this article for your reference, I hope you will learn a lot after reading this article, let's go to know it!

The problem is that when you import data from Mysql to Hive, the data in Mysql is "T2". After entering Hive, it becomes "5432". Why, how garbled is it? it feels like ASCII coding.

There is a phenomenon, have not encountered this before, feel very strange, quickly look for the relevant information, and then check the Mysql database table field is the text type.

How to solve it: add the following parameter to the sqoop import statement, where xxx is the column name in the database table, that is, the column name where ASCII appears above.

List-1

-- map-column-java xxx=String

If there are multiple fields with ASCII, you need to escape multiple fields, such as List-2, which needs to be written as one line to deal with:

List-2

-- map-column-java field 1=String, field 2=String, field 3=String, field 4=String above is all the contents of this article "what to do when importing Mysql data into Hive from Sqoop to Hive". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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