THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
These statements provide a way to query the Hive metastore for existing data and metadata accessible to this Hive system.
Show Databases
Code Block |
---|
SHOW (DATABASES|SCHEMAS) [LIKE identifier_with_wildcards];
|
SHOW DATABASES lists all of the databases defined in the metastore. The optional LIKE clause allows the list of databases to be filtered using a regular expression. The regular expression may only contain '' for any characters or '|' for a choice. Examples are 'employees', 'emp', "emp*|*ees', all of which will match the database named 'employees'.
Show Tables
Code Block |
---|
SHOW TABLES identifier_with_wildcards |
...