Interface SchemasService


  • @Generated
    public interface SchemasService
    A schema (also called a database) is the second layer of Unity Catalog’s three-level namespace. A schema organizes tables, views and functions. To access (or list) a table or view in a schema, users must have the USE_SCHEMA data permission on the schema and its parent catalog, and they must have the SELECT permission on the table or view.

    This is the high-level interface, that contains generated methods.

    Evolving: this interface is under development. Method signatures may change.

    • Method Detail

      • create

        SchemaInfo create​(CreateSchema createSchema)
        Create a schema.

        Creates a new schema for catalog in the Metatastore. The caller must be a metastore admin, or have the **CREATE_SCHEMA** privilege in the parent catalog.

      • delete

        void delete​(DeleteSchemaRequest deleteSchemaRequest)
        Delete a schema.

        Deletes the specified schema from the parent catalog. The caller must be the owner of the schema or an owner of the parent catalog.

      • get

        SchemaInfo get​(GetSchemaRequest getSchemaRequest)
        Get a schema.

        Gets the specified schema within the metastore. The caller must be a metastore admin, the owner of the schema, or a user that has the **USE_SCHEMA** privilege on the schema.

      • list

        ListSchemasResponse list​(ListSchemasRequest listSchemasRequest)
        List schemas.

        Gets an array of schemas for a catalog in the metastore. If the caller is the metastore admin or the owner of the parent catalog, all schemas for the catalog will be retrieved. Otherwise, only schemas owned by the caller (or for which the caller has the **USE_SCHEMA** privilege) will be retrieved. There is no guarantee of a specific ordering of the elements in the array.

      • update

        SchemaInfo update​(UpdateSchema updateSchema)
        Update a schema.

        Updates a schema for a catalog. The caller must be the owner of the schema or a metastore admin. If the caller is a metastore admin, only the __owner__ field can be changed in the update. If the __name__ field must be updated, the caller must be a metastore admin or have the **CREATE_SCHEMA** privilege on the parent catalog.