What should be used to implement MySQL LIKE statement in MongoDB?

To get MySQL LIKE statement, use the REGEX in MongoDB. Let us first create a collection with documents −

> db.likeInMongoDBDemo.insertOne({"Name" : "Sam"}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cd6922857806ebf1256f123") } > db.likeInMongoDBDemo.insertOne({"Name" : "John" }); {    "acknowledged" : true,    "insertedId" : ObjectId("5cd6923157806ebf1256f124") } > db.likeInMongoDBDemo.insertOne({"Name" : "Scott"}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cd6924557806ebf1256f125") } > db.likeInMongoDBDemo.insertOne({"Name" : "Sean"}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cd6924f57806ebf1256f126") } > db.likeInMongoDBDemo.insertOne({"Name" : "Samuel"}); {    "acknowledged" : true,    "insertedId" : ObjectId("5cd6925857806ebf1256f127") }

Following is the query to display all documents from a collection with the help of find() method −

> db.likeInMongoDBDemo.find().pretty();

This will produce the following output −

{ "_id" : ObjectId("5cd6922857806ebf1256f123"), "Name" : "Sam" } { "_id" : ObjectId("5cd6923157806ebf1256f124"), "Name" : "John" } { "_id" : ObjectId("5cd6924557806ebf1256f125"), "Name" : "Scott" } { "_id" : ObjectId("5cd6924f57806ebf1256f126"), "Name" : "Sean" } { "_id" : ObjectId("5cd6925857806ebf1256f127"), "Name" : "Samuel" }

Following is the query to perform REGEX to match the MySQL LIKE statement in MongoDB −

> db.likeInMongoDBDemo.find({"Name":{$regex:"Sam"}});

This will produce the following output −

{ "_id" : ObjectId("5cd6922857806ebf1256f123"), "Name" : "Sam" } { "_id" : ObjectId("5cd6925857806ebf1256f127"), "Name" : "Samuel" }