Antwort Is Solr a NoSQL database? Weitere Antworten – Is Solr SQL or NoSQL
NoSQL database
Solr, however, is more than a search engine — it's also often used as a document-based NoSQL database with transactional support that can be used for storage purposes and even a key-value store.Lucene Java search library
Solr runs as a standalone full-text search server. It uses the Lucene Java search library at its core for full-text indexing and search, and has REST-like HTTP/XML and JSON APIs that make it usable from most popular programming languages.Solr Search is a better choice if you need a search engine that can handle frequent updates and indexing of new data, while Elastic Search is better suited for real-time search applications. Analytics: Elastic Search offers powerful analytics capabilities, including support for aggregation and visualization.
What is the difference between Solr and Lucene : Lucene is the underlying search library, and Solr is a platform built on top of Lucene that makes it easy to build Lucene-based applications. Both are full-featured and have excellent performance, relevancy ranking and scalability.
Is Solr still relevant
As of December 2022, according to DB-Engines, Elasticsearch is the most popular search engine database, and Solr is third. While Solr was initially more popular than Elasticsearch, Elasticsearch surpassed Solr in late 2015 and has mostly continued to increase adoption.
Why use Solr over SQL : SQL supports very simple wildcard-based text search with some simple normalization like matching upper case to lower case. The problem is that these are full table scans. In Solr all searchable words are stored in an "inverse index", which searches orders of magnitude faster.
Effective in version 10.3, the search functionality in Data Director that used Apache Solr is deprecated. Informatica will drop support for search with Solr in a future release. You can use search with Elasticsearch to find records in Data Director.
Leading companies like Adobe, Netflix, eBay, and AOL are just a few examples of organizations that use Apache Solr for their search functions. It's so popular that it accounts for a 25.91% market share in the enterprise search category.