https://ruby-china.org/jenny0219 en-us <p>在 rails 中怎么实现 sql 语句 SELECT test.result,count(test.result) FROM testWHERE id=100 GROUP BY test.result</p> jenny0219 Tue, 14 May 2019 19:34:02 +0800 https://ruby-china.org/topics/38526 https://ruby-china.org/topics/38526