![]() Similarly, the Outbound rules should allow all traffic. If not, these settings click on the Edit inbound rules button and modify the settings, and click on Save rules. Verify that the security group used has settings for Type as All traffic, Protocol as All, Port Range as All, and Source as Anywhere (0.0.0.0/0). Click on the link for Security Groups in the RDS Console for each database instance. If security groups used do not have the required Inbound/Outbound rules, they may need to be modified. The source and target RDS instances for Oracle and MySQL are shown in Figure 1. Certain reserved words such as “mysql” for a MySQL RDS instance cannot be used for any of the configuration settings (Database Name, DB Instance Identifier, Master Username, Master Password). For the MySQL RDS instance database name mysqldb is used, and for the Oracle RDS instance database name orcl is used. As RDS does not create a database by default, we need to select the Additional configurations and specify an initial database name for each of the RDS instances. When creating the RDS instances, set the Public access option to Yes as we would need to access these instances directly to run some preparation commands before a DMS migration is performed, and also verify the migrated data after the migration has been completed. If the AWS account has a limit on the maximum number of VPCs, delete some unused VPCs before creating the RDS instances. The default VPC Security group may be used. Before creating the RDS instances, create a new VPC (Virtual Private Cloud), create a new DB Subnet Group, and optionally create a new security group. Step 1: Creating Oracle and MySQL DB Instances on RDSĪs we shall be using Oracle and MySQL RDS DB instances as the source and target respectively for the DMS migration, create two RDS instances, one for Oracle Database and the other for MySQL. The only prerequisite is an AWS account, which may be created here. Microsoft Azure supports your workload with abundant choices, whether you're working on a Java app, app server, or framework. MySQL and Oracle databases are completely different and you may want to migrate to MySQL for one or more of several reasons such as data types support, operating system support, and scale of deployment. The migration could be necessary if you prefer the open-source MySQL database to the commercial Oracle Database. In this article, we will migrate Oracle Database to MySQL database. The benefits of a cloud-based Database-as-a-Service (DBaaS) include a fully managed service not requiring a DBA, high availability with failover, scalability, and integration with other cloud services for automated monitoring and automated logging. Platform migration-Data on a local machine may be migrated to a cloud database service.Database Consolidation-Multiple source databases may be migrated to a single database for consolidation.Data replication-Continuous data replication to different target databases for the purpose of testing and development, and regional distribution of databases.A relational database could benefit by migrating to a NoSQL database. A commercial database could be migrated to an open source database and vice versa. Heterogeneous migration could be required to avail of features from another database such as a database data type not supported on the source database. ![]() Heterogeneous migration-Migration to a different database engine, for example, Oracle Database to MySQL database.Homogeneous migration could be used to make a backup of a database. Homogeneous migration-Migration to the same database engine type but on a different platform.You may need to migrate a database for one or more of several reasons such as the following: The source database incurs zero downtime during the migration process. The source database could be a database on AWS, a local database, or a database on some other cloud platform such as Oracle Database Cloud service. ![]() The target database has to be one of the supported databases on AWS such as one of the AWS Relational Database Service (RDS) hosted databases, Amazon DynamoDB, or Amazon Redshift. ![]() AWS Database Migration Service (DMS) is a service to migrate databases on AWS. ![]()
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