我有一个员工数据库,它捕获了所有公司的所有员工,这些公司由一个company_id
我想做这样的事情
sql = "SELECT race, `foreign`, id_number, company_id, COUNT(*) FROM `employees` WHERE company_id = 52 AND race = `African` AND `foreign` = 1 GROUP BY id_number;"
temp_arr = []
ActiveRecord::Base.connection.execute(sql).each {|int| temp_arr << int }
这样的employee_ids = Employees.where(company_id: company_id and race: 'African' and foreign: 1).pluck(:id_number)
我一直得到以下错误
ActiveRecord::StatementInvalid: Mysql2::Error: Unknown column 'African' in 'where clause':
并且一直在阅读Ruby on Rails指南,似乎找不到我要找的东西。对不起,我从来没有做过这样的查询,它可能是格式化错误或什么
你必须用','代替'和','
employee_ids = Employees.where(company_id: company_id, race: 'African', foreign: 1).pluck(:id_number)