![]() I will filter by the director field, and get all the documents that end with ‘Spielberg’:ĭb.getCollection("movies"). Compass can carry out all the operations that Mongo Shell does and more, including: Visualize and explore data stored in your database. ![]() Viewing Saved Queries Starting in MongoDB Compass 1.31, you can view your saved queries and aggregation pipelines on the My Queries view once connected to your cluster. 3 Name your query Enter a name for your query. 2 Select favorites Click the Star button. Too bad that in spite of being my favourite director, I can only remember his last name: oh well, that will have to do. MongoDB Compass is a much better alternative for the Mongo shell. Open query history Click the History button at the top of the pipeline builder. Now I am going to get a list of movies of my favourite director. Next MongoDB: How to Select a Random Sample of Documents. Prev MongoDB: How to Use Greater Than & Less Than in Queries. As an example let´s imagine we got a MongoDB collection of movies that has the following fields: title, plot, and director. MongoDB: How to Query for not null in Specific Field MongoDB: How to Replace Strings. In MongoDB we can query string fields quite easily using regular expressions. Now let´s see how we can achieve the same with MongoDB. SELECT * FROM names n where n.name LIKE '%a%' This query will find all values that contains a ‘a’ in any position: SELECT * FROM names n where n.name LIKE '%Smith' Enter an integer representing the number of documents to return into the Limit field. This query will get all the values ending with ‘Smith’: To specify the limit: In the Query Bar, click Options. SELECT * FROM names n where n.name LIKE 'James%' Developers who had worked with SQL Server are well familiar with the % wildcard that represents 0 or any number of characters.įor example, this query will find all values starting with ‘James’: Here, we have selected the artists’ collection of the Company database. Find a Single Document Find One or More Documents Count Documents in the Collection Query Patterns. Now you have to select the existing database and collection where you find out the documents as per their id. ![]() SELECT * FROM names n where n.name LIKE 'James Smith'īy combining the use of the LIKE function with wildcards, we can find all values that start, end, or contain a string at a given position. field existsmongoose query if field exists where filed existsmongodb mongoose : find all docs where field doesnt exists. Open the MongoDB compass and connect to the server. LIKE allow us to check if 2 strings are equal: In SQL we commonly use the LIKE function to compare strings. Using the or operator, you can specify a compound query that joins each clause with a logical OR conjunction that selects the documents in the collection that. In this post we saw the basics of MongoDB filtering, now it is time to have a closer look at how to filter and search information in MongoDB collections when dealing with attributes of type string.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |