Delete all href attribute in WordPress posts

Moving comment to answer:

Did you try adding a delimiter around your regex pattern? That’s what the little note on the bottom of your screenshot says. So for instance, /]>(.?)</a>/ , noting the added slashes. (Since this is replacing stuff in your database, let me say, use at your own risk.)

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)