There are several ways to locate whitespace, special characters, excessive tabs, and carriage returns in text fields using PostgreSQL:
Example query:
SELECT * FROM mytable WHERE mytextfield ~ '\s'; -- finds records with any whitespace character in mytextfield SELECT * FROM mytable WHERE mytextfield ~ '[^[:alnum:][:space:]]'; -- finds records with any special character in mytextfield
Example query:
SELECT replace(mytextfield, E'\t', '') FROM mytable; -- removes all tabs from mytext_field
Example query:
SELECT regexpreplace(mytextfield, E'[^\w\s]', '', 'g') FROM mytable; -- removes all non-alphanumeric and non-whitespace characters from mytextfield
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2022-04-19 11:00:00 +0000
Seen: 9 times
Last updated: Mar 07 '23
What is the procedure for using pg_restore on Windows with Docker?
Due to SyntaxError, why am I unable to create a TIMESTAMP WITH TIMEZONE column in postgres?
What are the benefits of choosing sqlalchemy.types instead of sqlalchemy.dialects.mssql?
What is the method for placing parentheses in column names when creating a table using an SQL query?
How can larger BLOBs be compressed without being inlined?
How can pgcrypto be used to secure data on Postgres?
How can you apply a filter using in_() in SQLAlchemy for JSON data?