How to make LIKE clause case-insensitive?

Question

I\'m using a LIKE clause in Ruby On Rails. When I try to search for records by typing \"more\" it doesn\'t return anything, but when I do with \"Mor

Answer 1

try something like this

def query_job(query)
  job_query = "%#{query.downcase}%"
  Job.where("lower(title) LIKE ? or lower(duration) LIKE ?", job_query, job_query) 
end 

query_job(params[:search])

Answer 2

I assume you're using Postgres.

You can use ILIKE

Job.where('title ILIKE ? OR duration ILIKE ?', "%#{params[:search]}%", "%#{params[:search]}%")

Or a some tricky hack lower():

Job.where('lower(title) LIKE lower(?) OR lower(duration) LIKE lower(?)', "%#{params[:search]}%", "%#{params[:search]}%")