CREATE SCHEMA

Syntax

CREATE SCHEMA schema_name [IN DATABASE database_name];

Description

A schema is a logical grouping of relational objects such as streams, changelogs and materialized views. Schemas are grouped in a database. A combination of databases and schemas enable you to organize your streams, changelogs, and other database objects in a hierarchical fashion in DeltaStream. Such hierarchies also serve as a basis for providing role-based access control (RBAC) in DeltaStream in the same way as other relational databases. CREATE SCHEMA enters a new schema into the current database. The schema name must be distinct from the name of any existing schema in the current database.

Arguments

schema_name

Name of the schema to create. If the name is case sensitive you must wrap it in double quotes; otherwise the system uses the lower case name.

IN DATABASE database_name

Optionally, the database i which to create the schema. If the name is case sensitive you must wrap it in double quotes; otherwise the system uses the lower case name.

Examples

Create a new schema in default database

The following creates a new schema named newschema in the current database demodb:

demodb.public/<no-store># CREATE SCHEMA newschema;
+------------+----------------+------------+------------------------------------------+
|  Type      |  Name          |  Command   |  Summary                                 |
+============+================+============+==========================================+
| schema     | mydb.newschema | CREATE     | schema "demodb.newschema" was            |
|            |                |            | successfully created                     |
+------------+----------------+------------+------------------------------------------+
demodb.public/<no-store># LIST SCHEMAS;
+------------+-------------+------------+-------------------------------+
|  Name      |  Is Default |  Owner     |  Created At                   |
+============+=============+============+===============================+
| public     | true        | sysadmin   | 2023-08-09 17:14:46 +0000 UTC |
+------------+-------------+------------+-------------------------------+
| newschema  | false       | sysadmin   | 2024-07-02 21:20:23 +0000 UTC |
+------------+-------------+------------+-------------------------------+

Create a new schema in a specified database

The following creates a new schema named NewSchema in the specified database otherdb:

demodb.public/<no-store># CREATE SCHEMA "NewSchema" IN DATABASE otherdb;
+------------+-------------------+------------+------------------------------------------+
|  Type      |  Name             |  Command   |  Summary                                 |
+============+===================+============+==========================================+
| schema     | otherdb.NewSchema | CREATE     | schema "otherdb.NewSchema" was           |
|            |                   |            | successfully created                     |
+------------+-------------------+------------+------------------------------------------+
demodb.public/<no-store># LIST SCHEMAS IN DATABASE otherdb;
+------------+-------------+------------+-------------------------------+
|  Name      |  Is Default |  Owner     |  Created At                   |
+============+=============+============+===============================+
| public     | true        | sysadmin   | 2024-07-02 21:21:18 +0000 UTC |
+------------+-------------+------------+-------------------------------+
| NewSchema  | false       | sysadmin   | 2024-07-02 21:21:25 +0000 UTC |
+------------+-------------+------------+-------------------------------+