pymongo find element in array
The $elemMatch operator limits the contents of an <array> field from the query results to contain only the first element matching the $elemMatch condition. ,The $elemMatch operator matches documents that contain an array field with at least one element that matches all the specified query criteria. copy. copied. , for match in collec.find( "ad_accounts.0.ads.campaigns" : "$in" : [123] } ... $in is a command for matching any element from an array., Let me try to explain using your data set db.foo.insert( "username" : "pbakkum", "addresses" : [ "name" : "home", "state" : "CA" }, "name" ...,If the field holds an array, then the $in operator selects the documents whose field holds an array that contains at least one element that matches a value in the ... , [Updated Answer] You can query the following way to get back the name ... be able to do this if the student was stored in the array as an object., If I would like to query if a field in an array I can do this ... But what if I would like to find a string is in a array of an mongodb object like,MongoDB Manual - how to query an array of documents, how to query an array of ... all documents where an element in the instock array matches the specified ... ,To query if the array field contains at least one element with the specified value, use the filter <field>: <value> } where <value> is the element value. To query if the array field contains at least one element with the specified value
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 pymongo find element in array 相關參考資料
$elemMatch (projection) — MongoDB Manual
The $elemMatch operator limits the contents of an <array> field from the query results to contain only the first element matching the $elemMatch condition. https://docs.mongodb.com $elemMatch (query) — MongoDB Manual
The $elemMatch operator matches documents that contain an array field with at least one element that matches all the specified query criteria. copy. copied. https://docs.mongodb.com find in nested array pymongo - Stack Overflow
for match in collec.find( "ad_accounts.0.ads.campaigns" : "$in" : [123] } ... $in is a command for matching any element from an array. https://stackoverflow.com mongodb find elements in Array - Stack Overflow
Let me try to explain using your data set db.foo.insert( "username" : "pbakkum", "addresses" : [ "name" : "home", "state" : "CA"... https://stackoverflow.com MongoDB Query operator - MongoDB Documentation
If the field holds an array, then the $in operator selects the documents whose field holds an array that contains at least one element that matches a value in the ... https://docs.mongodb.com MongoDB: How to find out if an array field contains an element ...
[Updated Answer] You can query the following way to get back the name ... be able to do this if the student was stored in the array as an object. https://stackoverflow.com pymongomongodb: query if an element in an array of mongodb object ...
If I would like to query if a field in an array I can do this ... But what if I would like to find a string is in a array of an mongodb object like https://stackoverflow.com Query an Array of Embedded Documents — MongoDB Manual
MongoDB Manual - how to query an array of documents, how to query an array of ... all documents where an element in the instock array matches the specified ... https://docs.mongodb.com Query an Array — MongoDB Manual
To query if the array field contains at least one element with the specified value, use the filter <field>: <value> } where <value> is the element value. To query if the array field... https://docs.mongodb.com |