Question

I am getting the image names from mysql database. I have my images containing two to three words with png extension. Also the names contains hiphen symbol. First I want to remove the
space to the left and right of the hiphen symbol. Secondly, I want to replace the space between two words with underscore symbol. How can I write the query for this?

For second one:

UPDATE table_name set colname=replace(colname, ‘ ‘, ”)

Please help me with the query for first task…
Thanks in advance

Answer 1

Sounds like you could use a few REPLACE

SELECT
  REPLACE(
    REPLACE(
      REPLACE(
        name,
        ' -',
        '-'
      ),
      '- ',
      '-'
    ),
    ' ',
    '_'
  ) as new_name