Answer by Somnath Muluk for How to query MongoDB with "like"?

There are already many answers. I am giving different types of requirements and solutions for string search with regex.

You can do with regex which contain word i.e like. Also you can use $options => i for case insensitive search

Contains string

db.collection.find({name:{'$regex' : 'string', '$options' : 'i'}})

Doesn't Contains string only with regex

db.collection.find({name:{'$regex' : '^((?!string).)*$', '$options' : 'i'}})

Exact case insensitive string

db.collection.find({name:{'$regex' : '^string$', '$options' : 'i'}})

Start with string

db.collection.find({name:{'$regex' : '^string', '$options' : 'i'}})

End with string

db.collection.find({name:{'$regex' : 'string$', '$options' : 'i'}})

Keep this as a bookmark, and a reference for any other alterations you may need.