I know that Job.all returns an array of all jobs.
但是,秩序是什么?
它们是否通过发送<代码>id订购?
但是,看着什么?
没有命令。 你们在了解“积极观察”的同时,应当看看你的记录,看看正在产生什么。 如果没有按条款分列的书面记录,就没有命令。 您可能发现,你的记录按输入数据库的顺序重新记录,但这种记录只是偶然的,也是由于在数据库服务器内实施。 除非按英文字母顺序排列,否则其结果显然没有排序。
至于第1号,这也是任意的,没有一项命令条款(至少是第3号铁路)。
你可以非常容易地具体指明命令:
MyModel.order(:some_attr) # all records sorted by some_attr
MyModel.order(:some_attr).first # First record in sorted order
Default order in Rails is not defined. Actually it depends on the databases.
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