question Re: Does Hive supports information schema? in Support Questions

Does Hive supports information schema?

kaif — Mon, 24 Jun 2024 07:33:03 GMT

I want to query all tables/columns metadata in hive. The way this is done in other databases like mssql, postgresql is to query information_schema views, but i don't see anything like that in hive. Can someone confirm is information_schema doesn't exists in hive. If it doesn't exists what would be a way to query metadata ??

Tried querying information_schema, but didn't get anything.

Re: Does Hive supports information schema?

VidyaSargur — Tue, 25 Jun 2024 07:50:56 GMT

@kaif, Welcome to our community! To help you get the best possible answer, I have tagged our Hive experts @smruti @ggangadharan who may be able to assist you further.

Please feel free to provide any additional information or details about your query, and we hope that you will find a satisfactory solution to your question.

Re: Does Hive supports information schema?

smruti — Fri, 28 Jun 2024 06:02:46 GMT

@kaif Hive does have information_schema database, that you can access from beeline or Hue. You also have SYS db that fetches different information from the RDBMS that is used to store hive metadata.

Here's the DDLs of those tables, and this will also give you some idea on what data they store.