How to do , 'not contains' search for text and other fields in azure cognitive search

Question

1) What is the correct syntax for doing a not contains text search?

I would like to pull all fileNames that doesnot contain "test" in the file name.

2) For the same field i want to a contains search also like , I would like to pull all fileNames that contain "test" in the file name.

for the above 2 questions i want syntax like how to use it to search

Answer 1

@Soorya Prabha Jagatheesan I like to use Lucene query language as it's rather popular in the search tools so I will provide some examples using it.

Not would be done via - or ! in your Lucene setup. Please see here for more information on NOT, OR, AND operators.

For finding files that contain a "term" rather than the exact word, you can try a regex query like /.term./ /.part2./

https://[service name].search.windows.net/indexes/[search index]/docs?api-version=2016-09-01&queryType=full&search=/.*term.*/ /.*part2.*/  

Note: Azure Cognitive Search supports simple and full queries. Please use the full query to use Lucene.

Please let us know if you have further questions or concerns.