databases_ddl

Creates, updates, deletes, gets or lists a databases_ddl resource.

Overview

Name	databases_ddl
Type	Resource
Id	google.spanner.databases_ddl

Fields

The following fields are returned by SELECT queries:

projects_instances_databases_get_ddl

Name	Datatype	Description
protoDescriptors	string (byte)	Proto descriptors stored in the database. Contains a protobuf-serialized google.protobuf.FileDescriptorSet. For more details, see protobuffer self description.
statements	array	A list of formatted DDL statements defining the schema of the database specified in the request.

Methods

The following methods are available for this resource:

Name	Accessible by	Required Params	Optional Params	Description
projects_instances_databases_get_ddl	select	projectsId, instancesId, databasesId		Returns the schema of a Cloud Spanner database as a list of formatted DDL statements. This method does not show pending schema updates, those may be queried using the Operations API.
projects_instances_databases_update_ddl	update	projectsId, instancesId, databasesId		Updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc. The returned long-running operation will have a name of the format /operations/ and can be used to track execution of the schema changes. The metadata field type is UpdateDatabaseDdlMetadata. The operation has no response.

Parameters

Parameters can be passed in the WHERE clause of a query. Check the Methods section to see which parameters are required or optional for each operation.

Name	Datatype	Description
databasesId	string
instancesId	string
projectsId	string

SELECT examples

projects_instances_databases_get_ddl

Returns the schema of a Cloud Spanner database as a list of formatted DDL statements. This method does not show pending schema updates, those may be queried using the Operations API.

SELECT
protoDescriptors,
statements
FROM google.spanner.databases_ddl
WHERE projectsId = '{{ projectsId }}' -- required
AND instancesId = '{{ instancesId }}' -- required
AND databasesId = '{{ databasesId }}' -- required
;

UPDATE examples

projects_instances_databases_update_ddl

Updates the schema of a Cloud Spanner database by creating/altering/dropping tables, columns, indexes, etc. The returned long-running operation will have a name of the format /operations/ and can be used to track execution of the schema changes. The metadata field type is UpdateDatabaseDdlMetadata. The operation has no response.

UPDATE google.spanner.databases_ddl
SET 
data__operationId = '{{ operationId }}',
data__protoDescriptors = '{{ protoDescriptors }}',
data__statements = '{{ statements }}'
WHERE 
projectsId = '{{ projectsId }}' --required
AND instancesId = '{{ instancesId }}' --required
AND databasesId = '{{ databasesId }}' --required
RETURNING
name,
done,
error,
metadata,
response;