CREATE (DATABASE|SCHEMA) [IF NOT EXISTS] db_name [COMMENT comment_text] [LOCATION path] [WITH DBPROPERTIES (key1=val1, key2=val2, ...)]
Create a database. If a database with the same name already exists, an exception will be thrown.
IF NOT EXISTS
- If a database with the same name already exists, nothing will happen.
- If the specified path does not already exist in the underlying file system, this command will try to create a directory with the path. When the database is dropped later, this directory will be deleted.