在 MongoDB Compass 中查询
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Querying in MongoDB Compass
提问by GBT97
Just a quick question I hope someone can answer for me.
只是一个简单的问题，我希望有人可以为我解答。
I have a collection in MongoDB containing 84 thousand documents. The data looks something like this:
我在 MongoDB 中有一个包含 84,000 个文档的集合。数据看起来像这样：
There are several thousand documents containing the word "BOND" as the category name such as this:
有几千个包含单词“BOND”作为类别名称的文档，例如：
And many thousands more...
还有成千上万...
Currently in MongoDB Compass I am using the following query:
目前在 MongoDB Compass 我使用以下查询：
{ "Category" : "BOND" }
But of course this just returns 1 document that where the Category is BOND.
但是当然这只会返回 1 个文档，其中类别是 BOND。
Can anybody tell me how I can query to find all documents where the field name "Category" contains the word "BOND" within it?
谁能告诉我如何查询以查找字段名称“类别”中包含“BOND”一词的所有文档？
Many thanks, G
非常感谢，G
回答by Alexey Sviridov
You should use regexp for this, i.e.
您应该为此使用正则表达式，即
{ "Category" : /^BOND.*/ }
for categories begins with BOND, or
对于以 BOND 开头的类别，或
{ "Category" : /.*BOND.*/ }
for categories contains BOND within
对于类别包含 BOND
