
Query Data from Couchbase 6 Using N1QL
This course is an introduction to the N1QL query language, and covers several ways in which it can be used to retrieve and manipulate data stored in the form of JSON documents in a Couchbase database.
Learning Journey Context
This course serves as an entry point into Software Development, building foundational knowledge before moving on to advanced frameworks or specialized paths.
Relevant for: Frontend Developer, Full Stack Developer, Web Engineer.
Quick Facts
What You’ll Learn
Couchbase is a document-oriented database which has its own query language, called N1QL to view and manipulate data. In this course, Query Data from Couchbase Using N1QL, you will get some hand-on experience in writing N1QL queries whose syntax is similar to SQL but is meant to work with JSON documents. First, you will explore how documents can be searched using the Couchbase web UI and how this interface allows you to define filters based on a document key and also on the values of its attributes. Next, you will cover some of the basics of querying in the N1QL query language - such as the SELECT, FROM and WHERE clauses of a N1QL query - and will also take a brief look at adding and updating documents using INSERT and UPDATE queries. Finally, you will discover how to work with data at a document level, and also perform aggregate operations using the GROUP BY and HAVING clauses. You will then gain an understanding on the use of built-in functions in N1QL, the building of indexes and the use of conditional operators such as the CASE statement. Once you finish this course, you will have a broad understanding of the capabilities of Couchbase and N1QL and can run a variety of queries on your document data.
Outcomes
- Course Overview : 1min.
- Getting Started with Queries : 46mins.
- Selecting and Filtering Query Results : 53mins.
- Indexing and Shaping Query Results : 31mins.
- Invoking Functions in Queries : 49mins.
- Performing Conditional Operations in Queries : 42mins.
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