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Character Sets: Migrating to utf8mb4 with pt_online_schema_change

Modern applications often feature the use of data in many different languages. This is often true even of applications that only offer a user facing interface in a single language. Many users may, for example, need to enter names which, although using Latin characters, feature diacritics; in other cases, they may need to enter text which contains Chinese or Japanese characters. Even if a user is capable of using an application localized for only one language, it may be necessary to deal with data from a wide variety of languages.

Enabling KMS encryption for a running Amazon RDS instance

Since summer 2017, Amazon RDS supports encryption at rest using AWS Key Management Service (KMS) for db.t2.small and db.t2.medium database instances, making the feature now available to virtually every instance class and type.

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