How to Remove Newline Characters from MySQL Data Rows Without Looping?

Trimming Newline Characters from MySQL Data Rows

Problem:

How can newline characters be removed from all data rows in a MySQL table without using a loop?

Solution:

The following query can be used to replace newline characters (n) and carriage return characters (r) with an empty string:

UPDATE test SET log = REPLACE(REPLACE(log, '\r', ''), '\n', '');

Explanation:

• REPLACE(log, 'r', '') replaces all carriage return characters with an empty string.
• REPLACE(log, 'n', '') replaces all newline characters with an empty string.

By using two nested REPLACE statements, all occurrences of both newline and carriage return characters are removed from the log column of the test table. This can be useful for cleaning up data that has been imported from CSV or other sources that may contain these characters.

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