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mongodb数组子集查询
阿神
阿神 2017-04-24 09:13:23
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528

｛
'user_name':'xiaoming',
'books':['java','c++','php','python','js','html','android']
｝
查询的时候，怎么只返回books数组中，'c++'后面的3个元素？

阿神
阿神

闭关修行中......

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迷茫
迷茫2017-04-24 09:15:23 2 floor

"The Definitive Guide to MonogDB" Second Edition 61 pages
It is recommended to read more books

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迷茫
迷茫2017-04-24 09:15:23 1 floor

db.test.find({},{"books":{"$slice":[2,3]}})

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