mongodb field contains
The $elemMatch operator matches documents that contain an array field with at least one element that matches all the specified query criteria. copy. copied. ,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 ... ,If the $regex pattern does not contain an anchor, the pattern matches against the string as a whole, as in the following example: copy. copied. db.products.find( ... ,The $text operator accepts a text query document with the following fields: .... So if a document field contains the word blueberry , a search on the term blue will ... , Check if a field contains a string in MongoDB - You can use regex operator to check if a field contains a string in MongoDB The syntax is as ..., As Mongo shell support regex, that's completely possible. .... a wildcard text index if you want to search any string field, like this: db.collection., 2 ways to do this: With regular expression. MongoDB supports regular expression match. here's an example: users.find(firstname: /Jo/}, ...,You can use a wildcard text index if you want to search any string field, like this: ... It contains one index entry for each unique post-stemmed word in each ... ,MongoDB Manual - How to query an array: query on the array field as a whole ... To query if the array field contains at least one element with the specified value, ...
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 mongodb field contains 相關參考資料
$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 $in — MongoDB Manual
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 $regex — MongoDB Manual
If the $regex pattern does not contain an anchor, the pattern matches against the string as a whole, as in the following example: copy. copied. db.products.find( ... https://docs.mongodb.com $text — MongoDB Manual
The $text operator accepts a text query document with the following fields: .... So if a document field contains the word blueberry , a search on the term blue will ... https://docs.mongodb.com Check if a field contains a string in MongoDB - Tutorialspoint
Check if a field contains a string in MongoDB - You can use regex operator to check if a field contains a string in MongoDB The syntax is as ... https://www.tutorialspoint.com Checking if a field contains a string - Stack Overflow
As Mongo shell support regex, that's completely possible. .... a wildcard text index if you want to search any string field, like this: db.collection. https://stackoverflow.com How can I find all documents where a field contains a particular ...
2 ways to do this: With regular expression. MongoDB supports regular expression match. here's an example: users.find(firstname: /Jo/}, ... https://stackoverflow.com mongodb - Checking if a field contains a string - Stack Overflow
You can use a wildcard text index if you want to search any string field, like this: ... It contains one index entry for each unique post-stemmed word in each ... https://stackoverflow.com Query an Array — MongoDB Manual
MongoDB Manual - How to query an array: query on the array field as a whole ... To query if the array field contains at least one element with the specified value, ... https://docs.mongodb.com |