CREATE SCHEMA

Примечание

Ниже приведена оригинальная документация Trino. Скоро мы ее переведем на русский язык и дополним полезными примерами.

Синтаксис

CREATE SCHEMA [ IF NOT EXISTS ] schema_name
[ AUTHORIZATION ( user | USER user | ROLE role ) ]
[ WITH ( property_name = expression [, ...] ) ]

Описание

Create a new, empty schema. A schema is a container that holds tables, views and other database objects.

The optional IF NOT EXISTS clause causes the error to be suppressed if the schema already exists.

The optional AUTHORIZATION clause can be used to set the owner of the newly created schema to a user or role.

The optional WITH clause can be used to set properties on the newly created schema. To list all available schema properties, run the following query:

SELECT * FROM system.metadata.schema_properties

Примеры

Create a new schema web in the current catalog:

CREATE SCHEMA web

Create a new schema sales in the hive catalog:

CREATE SCHEMA hive.sales

Create the schema traffic if it does not already exist:

CREATE SCHEMA IF NOT EXISTS traffic

Create a new schema web and set the owner to user alice:

CREATE SCHEMA web AUTHORIZATION alice

Create a new schema web, set the LOCATION property to /hive/data/web and set the owner to user alice:

CREATE SCHEMA web AUTHORIZATION alice WITH ( LOCATION = '/hive/data/web' )

Create a new schema web and allow everyone to drop schema and create tables in schema web:

CREATE SCHEMA web AUTHORIZATION ROLE PUBLIC

Create a new schema web, set the LOCATION property to /hive/data/web and allow everyone to drop schema and create tables in schema web:

CREATE SCHEMA web AUTHORIZATION ROLE PUBLIC WITH ( LOCATION = '/hive/data/web' )

См. также

ALTER SCHEMA, DROP SCHEMA