News

What is Document Database example?

What is Document Database example?

Common examples of document DBMS include JSON, XML docs, Catalogs, serialized PDFs and Excel docs, Profile data, and serialized objects.

What are documents in databases?

A document is a record in a document database. A document typically stores information about one object and any of its related metadata. Documents store data in field-value pairs. The values can be a variety of types and structures, including strings, numbers, dates, arrays, or objects.

How do you query NoSQL?

The SQL query language can be applied to any database that has a set of objects with fields in each object. This includes some NoSQL databases….

  1. Step 1: Create a NoSQL Table. …
  2. Step 2: Add Data to the NoSQL Table. …
  3. Step 3: Query the NoSQL Table. …
  4. Step 4: Delete an Existing Item. …
  5. Step 5: Delete a NoSQL Table.

Which of the following method is used to query documents in collection?

Discussion Forum

Que. Which of the following method is used to query documents in collections?
b. move
c. shell
d. replace
Answer:find

What is the best document database?

DB-Engines Ranking of Document Stores

☐ include secondary database models
Rank DBMS
Apr 2022 Mar 2022
1. 1. MongoDB
2. 2. Amazon DynamoDB

What is NoSQL example?

MongoDB, CouchDB, CouchBase, Cassandra, HBase, Redis, Riak, Neo4J are the popular NoSQL databases examples. MongoDB, CouchDB, CouchBase , Amazon SimpleDB, Riak, Lotus Notes are Document-oriented NoSQL databases.

What are document databases good for?

Document databases are efficient and effective for storing catalog information. For example, in an e-commerce application, different products usually have different numbers of attributes. Managing thousands of attributes in relational databases is inefficient, and the reading performance is affected.