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Rails change table

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2
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edit column table ruby on rails 

change_column :table, :column_name, :type, :whatever_here
1
0

how to create an SQL table in ruby 

def self.create_table
    sql = <<-SQL
      CREATE TABLE IF NOT EXISTS IF NOT EXISTS students (
        name TEXT,
        grade TEXT
      )
    SQL
    DB[:conn].execute(sql)
  end

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