Creating a Database Schema
Function
This API is used to create a database schema in a specified DB instance.
- Before calling an API, you need to understand the API in Authentication.
- Before calling this API, obtain the required region and endpoint.
Constraints
Databases cannot be created when the DB instance is in any of the following statuses: creating, changing instance class, changing port, frozen, or abnormal.
URI
- URI format
POST https://{Endpoint}/v3/{project_id}/instances/{instance_id}/schema
- Example
https://rds.cn-north-1.myhuaweicloud.com/v3/0483b6b16e954cb88930a360d2c4e663/instances/dsfae23fsfdsae3435in01/schema
- Parameter description
Table 1 Parameter description Name
Mandatory
Description
project_id
Yes
Specifies the project ID of a tenant in a region.
For details about how to obtain the project ID, see Obtaining a Project ID.
instance_id
Yes
Specifies the DB instance ID.
Request
- Parameter description
Table 2 Parameter description Name
Mandatory
Type
Description
db_name
Yes
String
Specifies the database name.
The value contains 1 to 63 characters, including letters, digits, and underscores (_). It cannot start with pg or a digit, and must be different from RDS for PostgreSQL template library names.
RDS for PostgreSQL template libraries include postgres, template0, and template1.
schemas
Yes
Array of objects
Each element is the schema information associated with the database. A single request supports a maximum of 20 elements.
For details on the element structure, see Table 3.
Table 3 schemas field data structure description Name
Mandatory
Type
Description
schema_name
Yes
String
Specifies the schema name.
The value contains 1 to 63 characters, including letters, digits, and underscores (_). It cannot start with pg or a digit, and must be different from RDS for PostgreSQL template library names and existing schema names.
RDS for PostgreSQL template libraries include postgres, template0, and template1.
Existing schemas include public and information_schema.
owner
Yes
String
Specifies the database owner.
The value contains 1 to 63 characters. It cannot start with pg or a digit, and must be different from system usernames.
System users include rdsAdmin, rdsMetric, rdsBackup, rdsRepl, rdsProxy, and rdsDdm.
- Request example
{ "db_name": "rds_test", "schemas": [ { "schema_name": "teste123", "owner": "teste123" } ] }
Response
- Normal response
Table 4 Parameter description Name
Type
Description
resp
String
Returns successful if the invoking is successful.
- Example normal response
{ "resp": "successful" } - Abnormal response
For details, see Abnormal Request Results.
Status Code
For details, see Status Codes.
Error Code
For details, see Error Codes.
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