How to query MongoDB with "like"?

Question

I want to query something with SQL's like query:

SELECT * FROM users  WHERE name LIKE '%m%'

How to do I achieve the same in MongoDB? I can't find an operator for like in the documentation.

Answer 1

That would have to be:

db.users.find({"name": /.*m.*/})

or, similar:

db.users.find({"name": /m/})

You're looking for something that contains "m" somewhere (SQL's '%' operator is equivalent to Regexp's '.*'), not something that has "m" anchored to the beginning of the string.

note: mongodb uses regular expressions which are more powerful than "LIKE" in sql. With regular expressions you can create any pattern that you imagine.

For more info on regular expressions refer to this link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions