Database Options - SQL Server to Aurora MySQL Migration Playbook
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Database Options

Feature compatibility Amazon SCT / Amazon DMS automation level Amazon SCT action code index Key differences


                              No feature compatibility

N/A

N/A

SQL Server database options are inapplicable to Aurora MySQL.

SQL Server Usage

SQL Server provides database level options that can be set using the ALTER DATABASE …​ SET command.

These settings enable you to:

  • Set default session options. For more information, see Session Options.

  • Turn on or turn off database features such as SNAPSHOT_ISOLATION, CHANGE_TRANCKING, and ENABLE_BROKER.

  • Configure high availability and disaster recovery options such as always on availability groups

  • Configure security access control such as restricting access to a single user, setting the database offline, or setting the database to read-only.

Syntax

Use the following syntax to set database options:

ALTER DATABASE { <database name> } SET { <option> [ ,...n ] };

Examples

Set a database to read-only and use ARITHABORT by default.

ALTER DATABASE Demo SET READ_ONLY, ARITHABORT ON;

Set a database to use automatic statistic creation.

ALTER DATABASE Demo SET AUTO_CREATE_STATISTICS ON;

Set a database offline immediately.

ALTER DATABASE DEMO SET OFFLINE WITH ROLLBACK IMMEDIATE;

For more information, see ALTER DATABASE SET options (Transact-SQL) in the SQL Server documentation.

MySQL Usage

The concept of a database in Amazon Aurora MySQL-Compatible Edition (Aurora MySQL) is different than SQL Server. In Aurora MySQL, a database is synonymous with a schema. Therefore, the notion of database options isn’t applicable to Aurora MySQL.

Note

Aurora MySQL has two settings that are saved with the database/schema: the default character set, and the default collation for creating new objects.

Migration Considerations

For migration considerations, see Server Options.