dbName
The meaning of this parameter differs according to the database engine you use.
Amazon Aurora MySQL
The name of the database to create when the primary DB instance of the Aurora MySQL DB cluster is created. If this parameter isn't specified for an Aurora MySQL DB cluster, no database is created in the DB cluster.
Constraints:
Must contain 1 to 64 alphanumeric characters.
Must begin with a letter. Subsequent characters can be letters, underscores, or digits (0-9).
Can't be a word reserved by the database engine.
Amazon Aurora PostgreSQL
The name of the database to create when the primary DB instance of the Aurora PostgreSQL DB cluster is created. A database named postgres is always created. If this parameter is specified, an additional database with this name is created.
Constraints:
It must contain 1 to 63 alphanumeric characters.
Must begin with a letter. Subsequent characters can be letters, underscores, or digits (0 to 9).
Can't be a word reserved by the database engine.
Amazon RDS Custom for Oracle
The Oracle System ID (SID) of the created RDS Custom DB instance. If you don't specify a value, the default value is ORCL for non-CDBs and RDSCDB for CDBs.
Default: ORCL
Constraints:
Must contain 1 to 8 alphanumeric characters.
Must contain a letter.
Can't be a word reserved by the database engine.
Amazon RDS Custom for SQL Server
Not applicable. Must be null.
RDS for Db2
The name of the database to create when the DB instance is created. If this parameter isn't specified, no database is created in the DB instance. In some cases, we recommend that you don't add a database name. For more information, see Additional considerations in the Amazon RDS User Guide.
Constraints:
Must contain 1 to 64 letters or numbers.
Must begin with a letter. Subsequent characters can be letters, underscores, or digits (0-9).
Can't be a word reserved by the specified database engine.
RDS for MariaDB
The name of the database to create when the DB instance is created. If this parameter isn't specified, no database is created in the DB instance.
Constraints:
Must contain 1 to 64 letters or numbers.
Must begin with a letter. Subsequent characters can be letters, underscores, or digits (0-9).
Can't be a word reserved by the specified database engine.
RDS for MySQL
The name of the database to create when the DB instance is created. If this parameter isn't specified, no database is created in the DB instance.
Constraints:
Must contain 1 to 64 letters or numbers.
Must begin with a letter. Subsequent characters can be letters, underscores, or digits (0-9).
Can't be a word reserved by the specified database engine.
RDS for Oracle
The Oracle System ID (SID) of the created DB instance. If you don't specify a value, the default value is ORCL. You can't specify the string null, or any other reserved word, for DBName.
Default: ORCL
Constraints:
Can't be longer than 8 characters.
RDS for PostgreSQL
The name of the database to create when the DB instance is created. A database named postgres is always created. If this parameter is specified, an additional database with this name is created.
Constraints:
Must contain 1 to 63 letters, numbers, or underscores.
Must begin with a letter. Subsequent characters can be letters, underscores, or digits (0-9).
Can't be a word reserved by the specified database engine.
RDS for SQL Server
Not applicable. Must be null.