相关疑难解决方法(0)

例如,我想将所有记录更新为"2012-01-01"("时间":ISODate("2011-12-31T13:52:40Z")).

db.test.update( { time : '2012-01-01' }, false, true  )

返回错误:

Assert failed : need an object
Error("Printing Stack Trace")@:0
()@shell/utils.js:35
("assert failed : need an object")@shell/utils.js:46
(false,"need an object")@shell/utils.js:54
([object Object],false,true)@shell/collection.js:189
@(shell):1

Wed Jan 11 17:52:35 uncaught exception: assert failed : need an object