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Syntax

CREATE DATABASE [ IF NOT EXISTS ] database_name
    [ WITH ] [ owner [=] user_name ]
    [ resource_group [=] resource_group_name ]
    [ barrier_interval_ms [=] integer ]
    [ checkpoint_frequency [=] integer ];

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Parameters

Parameter or clauseDescription
database_nameThe name of the database to be created.
IF NOT EXISTS clauseCreates a database if the database name has not already been used. Otherwise throws an error.
owner [=] user_name clauseSpecifies which user owns the database to be created.
resource_group [=] resource_group_name clauseAssigns the database to a specific resource group. If not set, the database belongs to the default resource group.
barrier_interval_ms [=] integer clauseSets how frequently the system injects barriers per-database. If not specified, uses the global settings defined in SystemParams.
checkpoint_frequency [=] integer clauseSets how many barriers should pass before triggering a checkpoint per-database. If not specified, uses the global settings defined in SystemParams.
Added in v2.5.0: barrier_interval_ms and checkpoint_frequency.
PREMIUM FEATUREThis is a premium feature. For a comprehensive overview of all premium features and their usage, please see RisingWave premium features.
Names and unquoted identifiers are case-insensitive. Therefore, you must double-quote any of these fields for them to be case-sensitive. See also Identifiers.

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Example

Set resource group: 
CREATE DATABASE IF NOT EXISTS travel
    WITH OWNER = travel_admin
    RESOURCE_GROUP = high_priority;
Set a custom barrier interval and checkpoint frequency for a database:
Create database
CREATE DATABASE IF NOT EXISTS travel
    WITH 
        OWNER = travel_admin
        BARRIER_INTERVAL_MS = 1500
        CHECKPOINT_FREQUENCY = 5;
To change the owner, barrier interval, or checkpoint frequency of an existing database, see the ALTER DATABASE command.