Onwuka Gideon, a seasoned freelance full stack developer, discusses the implementation of pagination in applications handling extensive document collections, focusing on using N1QL in conjunction with PHP. N1QL is a query language that extends SQL for JSON, allowing developers to query and manipulate data with native framework integration. The article guides readers through setting up a PHP environment to pull, paginate, and display data from a Couchbase database. It includes detailed steps like creating a Couchbase bucket and index, cloning a GitHub repository containing essential PHP files, and writing logic for inserting and displaying comments. The pagination is achieved using N1QL's LIMIT and OFFSET clauses to control the number of results per query and skip data based on the current page number. The tutorial concludes with the successful implementation of pagination, offering a complete app available on GitHub for further exploration.