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Starting from MongoDB 4.2 you can use the $regexMatch|$regexFind|$regexFindAll available in MongoDB 4.1.9+ and the $expr to do this. let regex = /123/; $regexMatch and $regexFind. db.col.find({ "$expr": { "$regexMatch": { "input": {"$toString": "$name"}, "regex": /123/ } } }) $regexFinAll
This page describes regular expression search capabilities for self-managed (non-Atlas) deployments. For data hosted on MongoDB Atlas, MongoDB offers an improved full-text search solution, Atlas Search, which has its own $regex operator. To learn more, see $regex in the Atlas Search documentation.
To include a regular expression in a comma-separated list of query conditions for the field, use the $regex operator. For example: { name: { $regex: /acme.*corp/i, $nin: [ 'acmeblahcorp' ] } } { name: { $regex: /acme.*corp/, $options: 'i', $nin: [ 'acmeblahcorp' ] } }
26 wrz 2024 · Using $regex operator for Pattern matching. The regex operator in MongoDB is used to search for specific strings in the collection. The following example shows how this can be done.
10 paź 2024 · The $regex operator in MongoDB is a powerful tool that provides regular expression capabilities for pattern matching within strings in queries. It is particularly useful when the exact field value is unknown which allows for flexible and efficient searches within collections .
11 mar 2024 · The 'i' flag makes the regular expression case-insensitive. We then add this regular expression object to the filter map, using the $regex operator provided by MongoDB. This tells MongoDB to perform a regular expression search for the given key and value.
4 lip 2024 · In MongoDB, regex can be used in queries to search for specific patterns within string fields. This capability is incredibly useful when you need to perform partial string matches, case-insensitive searches, or match against a specified pattern.
