How to query MongoDB with "like"
In MongoDB, you can perform "like" queries using regular expressions. Regular expressions are patterns that describe sets of strings and are used to match and search for text in a database.
To perform a "like" query in MongoDB, you can use the $regex operator, which allows you to specify a regular expression pattern to match against your data. Here's an example:
Suppose you have a collection called "users" with a field called "name", and you want to find all the users whose name contains the string "john". You can use the following query:
db
.users.find({name: {$regex:
"john"}})
This query will return all documents in the "users" collection where the "name" field matches the regular expression "john". Note that the regular expression is not case sensitive by default, so it will match both "John" and "john".
You can also use other regular expression options to modify the behavior of the query, such as case sensitivity or partial matching. For example, to make the query case sensitive, you can add the "i" option to the regular expression, like this:
db.users.
find({
name: {
$regex:
"john",
$options:
"i"}})
This query will return all documents in the "users" collection where the "name" field contains the exact string "john", with matching case.