Create your database
Complete the following steps to create and launch your DataStax Astra DB database.
Procedure
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In your Astra DB dashboard, select Create Database.
If you need more options, contact DataStax Support. -
Enter your basic details:
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Database Name: Name your database something meaningful. The database name cannot be altered after the database is created. Use only alphanumeric characters; there is no character limit.
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Keyspace Name: Name your keyspace to reflect your data model. You cannot name your keyspace “dse” or “system”. Use only alphanumeric characters and no more than 48 total characters.
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Select your cloud provider and then the region where you want to launch your database from the region menu, which reflects the available regions based on your selected cloud provider.
Regions with the lock symbol require payment. When selecting a region with a lock, you have to option to upgrade to a Pay-as-you-go-plan. If you select a region without a lock, you are still on the Free plan. 
You can preview the costs for the database based on read and write requests, storage, and data transfer. -
Select Create Database. The Database Created! page appears.
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Click X at the top right of the screen to return to your Astra DB dashboard.
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Click Generate Token to download tokens generated for you.
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An alert appears at the top of the screen when your database is created.
Results
You are redirected to your Organization Dashboard. The new database and status is shown under Databases. You will receive an email when your database creation is complete. Select the database name to manage or connect with your new database.