How do I show collections in the database?
First you need to use a database to display all the collections/tables within it. You can use show tables or show collections….
- Connect to MongoDB database using mongo.
- then run the show dbs command.
- then select the database you want.
- then run the show collections command.
Table of Contents
What are collections in a database?
Databases are sets of collections. Collections store records, which are referred to as documents. Collections are the RDBMS equivalent of tables, and documents can be thought of as rows in a table.
How do you create a database collection?
Method 1: Create the collection in MongoDB on the fly With a single command, you can insert a document into the collection and MongoDB creates that collection on the fly. Syntax: db. collection_name. insert({key:value, key:value…})
How do I view MongoDB collections?
Use the MongoDB shell show collections command to list all collections created in the current database. First, select the database in which you want to view the collection.
What is the difference between a database and a collection?
Databases, collections, and documents are important parts of MongoDB, without them you cannot store data on the MongoDB server. A database contains a collection, and a collection contains documents, and documents contain data, they are related to each other.
How to store a list in a column of a database table?
So from Mehrdad’s answer to a related question, I understand that a “proper” database table column does not store a list. Rather, you must create another table that actually contains the elements of that list, and then link it directly or through a join table.
How to use a collection in SQL Server?
Contains all Column objects that belong to the same Table object. The Microsoft Visual Basic For…Each statement or the Microsoft Visual C# foreach statement can be used to iterate through each member of the collection.
When do you create a collection in MongoDB?
Make sure both database and collection names follow the MongoDB Naming Restrictions. MongoDB stores documents in collections. Collections are analogous to tables in relational databases. If a collection doesn’t exist, MongoDB creates the collection when it first stores data for that collection.
How to organize the product database for your store?
You will need to organize your catalog according to: Product attributes: These are what distinguish each of the products in your database and allow you to locate them in online stores. In addition to the item’s name and price, you’ll need to include its specific attributes (color, size, weight, strength, etc.).
