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http://www.2cto.com/database/201304/205007.html
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posted @ 2014-03-13 13:57
silentjesse
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http://www.2cto.com/database/201304/205024.htmlmongoDB数组操作器$push会向数组末尾加入一个元素,如果数组不存在,则会创建这个数组。增加评论comments:db.blog.posts.update({"title":"a blog post"},{$push:{"comments":{"name":"joe","email":"joe@example.com"}}})最终的结果是:{"_i
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posted @ 2014-03-13 13:49
silentjesse
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http://my.oschina.net/132722/blog/168274
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posted @ 2014-03-13 13:41
silentjesse
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mongodb查询内嵌文档假设有这样一个文档:db.XXX.remove();db.XXX.insert({"id":1, "members":[{"name":"BuleRiver1", "age":27, "gender":"M"}, {"name":"BuleRiver2", "age":23, "gender":"F"}, {"name&q
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posted @ 2014-03-13 13:37
silentjesse
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