How do I find what user owns a HIVE database? - hive

Question

I want to confirm which user is the owner of a database in HIVE. Where would I find this information?

Answer 1

DESCRIBE|DESC DATABASE shows the name of the database, its comment (if one has been set), and its root location on the filesystem. The uses of SCHEMA and DATABASE are interchangeable – they mean the same thing. DESCRIBE SCHEMA is added in Hive 0.15 (HIVE-8803).
EXTENDED also shows the database properties.
DESCRIBE DATABASE [EXTENDED] db_name;
DESCRIBE SCHEMA [EXTENDED] db_name; -- (Note: Hive 0.15.0 and later)
These examples show that cards database was created by cloudera user:
hive> SET hive.cli.print.header=true;
hive> describe database cards;
OK
db_name comment location owner_name owner_type parameters
cards hdfs://quickstart.cloudera:8020/user/hive/warehouse/cards.db cloudera USER
Time taken: 0.013 seconds, Fetched: 1 row(s)
hive> desc schema cards;
OK
db_name comment location owner_name owner_type parameters
cards hdfs://quickstart.cloudera:8020/user/hive/warehouse/cards.db cloudera USER
Time taken: 0.022 seconds, Fetched: 1 row(s)
Alternatively,
Hive database is nothing but a hdfs directory in Hive warehouse dir location with .db extension. You can get user by simply from hadoop fs -ls command:
For a directory it returns list of its direct children as in Unix. A directory is listed as:
permissions userid groupid modification_date modification_time dirname
Files within a directory are order by filename by default.
Example:
hadoop fs -ls /user/hive/warehouse/*.db |awk '{print $3,$NF}'

Answer 2

Both will solve your problem:
hive> describe database extended db_name;
hive> describe schema extended db_name;
The output will have the owner user name.

Answer 3

If you have configured the hive to an external metastore like mysql or derby , you can query the metastore table DBS to get the information .
Query
select NAME,OWNER_NAME,OWNER_TYPE from DBS;
Output
+--------------+------------+------------+
| NAME | OWNER_NAME | OWNER_TYPE |
+--------------+------------+------------+
| default | public | ROLE |
| employee | addy | USER |
| test | addy | USER |