Opção 2. Mova os dados de uma versão do MySQL para outra exportando os dados da instância atual e importando esses dados para uma nova instância executando a versão posterior do MySQL. Esse processo envolve inatividade. Você coloca a instância atual em modo somente leitura antes de iniciar a exportação.
Considere os recursos oferecidos em cada versão do MySQL e as incompatibilidades de endereço.
Novas versões principais apresentam alterações incompatíveis que podem exigir que você modifique o código, o esquema ou as configurações do banco de dados do aplicativo antes de fazer upgrade da instância do banco de dados. Revise as notas de lançamento da versão principal de destino para determinar as incompatibilidades que você precisa resolver. Se você estiver pulando versões principais, resolva as incompatibilidades listadas para cada versão que você está ignorando.
Se você estiver fazendo upgrade do MySQL 5.7 para o 8.0, verifique se houve mudanças na concessão de usuários no MySQL 8.0.
O Cloud SQL para MySQL versão 8.0 usa uma nova flag do sistema chamada partial_revokes, que é definida como ON por padrão. Ao contrário do MySQL 5.7, essa flag remove o recurso de uso de caracteres curinga em comandos GRANT do banco de dados. Para garantir que os usuários do banco de dados tenham acesso aos esquemas de banco de dados corretos, modifique os privilégios de usuário do banco de dados antes de fazer upgrade para o MySQL 8.0. Atualize os privilégios do usuário para usar o nome completo dos esquemas de banco de dados necessários em vez de usar caracteres curinga.
Faça uma simulação do processo de upgrade de ponta a ponta com uma instância de teste antes de fazer upgrade do banco de dados de produção. É possível testar o upgrade usando um clone em vez de seu banco de dados de produção para evitar qualquer impacto no desempenho da exportação na carga de trabalho de produção.
Além de validar se o upgrade foi concluído com sucesso, execute testes para garantir que o aplicativo se comporta conforme o esperado no banco de dados atualizado. Se você não ativou os aumentos de armazenamento automáticos, anote o armazenamento em disco usado pela instância de simulação atualizada para determinar se é necessário aumentar a capacidade de armazenamento da instância de produção antes do upgrade.
Decida quando você quer fazer upgrade.
Migrar seus dados
Para migrar os dados para uma instância do Cloud SQL executando uma versão mais recente do banco de dados, siga estas etapas:
Crie a instância com a versão principal do banco de dados de destino.
Certifique-se de que essa instância tenha:
armazenamento suficiente para conter todos os dados da instância atual;
as mesmas redes autorizadas da instância atual. Saiba mais;
as mesmas contas de usuário, com os mesmos privilégios e senhas do MySQL.
Opcional. Depois de concluir o processo de upgrade, configure a replicação entre as instâncias de origem e de destino usando um servidor externo para atualizar o destino com todas as alterações que ocorreram desde que o dump inicial foi iniciado. Quando as duas instâncias estiverem sincronizadas, será possível promover a instância de destino.
[[["Fácil de entender","easyToUnderstand","thumb-up"],["Meu problema foi resolvido","solvedMyProblem","thumb-up"],["Outro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Informações incorretas ou exemplo de código","incorrectInformationOrSampleCode","thumb-down"],["Não contém as informações/amostras de que eu preciso","missingTheInformationSamplesINeed","thumb-down"],["Problema na tradução","translationIssue","thumb-down"],["Outro","otherDown","thumb-down"]],["Última atualização 2025-08-19 UTC."],[],[],null,["# Upgrade the database major version by migrating data\n\n\u003cbr /\u003e\n\nMySQL \\| [PostgreSQL](/sql/docs/postgres/upgrade-major-db-version-migrate \"View this page for the PostgreSQL database engine\") \\| [SQL Server](/sql/docs/sqlserver/upgrade-major-db-version-migrate \"View this page for the SQL Server database engine\")\n\n\u003cbr /\u003e\n\nThis page describes how to migrate your data to an instance running a later\nversion of MySQL. Before proceeding with this method, consider\n[upgrading the database major version in-place](/sql/docs/mysql/upgrade-major-db-version-inplace).\n| **Note:** To upgrade the minor version for MySQL 8.0, see [Upgrade the MySQL minor version for an instance](/sql/docs/mysql/upgrade-minor-db-version).\n\nThere are two ways to upgrade the database major version of your Cloud SQL\nfor MySQL instance by migrating your data.\n\n- **Option 1** . Use the [Database Migration Service (DMS)](/database-migration/docs/mysql/configure-source-database). DMS supports migrating from a Cloud SQL MySQL instance. You can also use it to upgrade your MySQL version.\n- **Option 2** . Move your data from one version of MySQL to another by *exporting* data from the current instance and *importing* that data into a new instance running the later version of MySQL. This process involves downtime; you put the current instance into read-only mode before starting the export.\n\nThis page discusses the second option.\n\nPlan a major version upgrade\n----------------------------\n\n1. Choose a target major version.\n\n See the [list of versions that Cloud SQL supports](/sql/docs/mysql/db-versions).\n2. Consider the features offered in each MySQL version and address\n incompatibilities.\n\n New major versions introduce incompatible changes that might require you to\n modify the application code, the schema, or the database settings before\n you can upgrade your database instance. Review the release notes of your\n target major version to determine the incompatibilities that you need to\n address. If you're skipping major versions, address the incompatibilities\n listed for each version that you're skipping.\n - [MySQL 8.4](https://dev.mysql.com/doc/refman/8.4/en/en/mysql-nutshell.html)\n - [MySQL 8.0](https://dev.mysql.com/doc/refman/8.0/en/upgrading-from-previous-series.html)\n - [MySQL 5.7](https://dev.mysql.com/doc/refman/5.7/en/upgrading-from-previous-series.html)\n3. If you are upgrading from MySQL 5.7 to 8.0, then check for user grant changes\n in MySQL 8.0.\n\n Cloud SQL for MySQL version 8.0 uses a new system flag called\n `partial_revokes`, which is set to `ON` by default. Unlike MySQL 5.7, this\n flag removes the ability to use wildcard characters in database `GRANT` commands.\n To ensure database users have access to the correct database schemas,\n modify database user privileges before upgrading to MySQL 8.0.\n Update the user's privileges to use the full\n name of the required database schemas instead of using wildcard characters.\n\n For more information on how this flag works in MySQL 8.0,\n see [partial_revokes in MySQL 8.0](/sql/docs/mysql/flags#partial-revokes).\n4. Test the upgrade with a dry run.\n\n Perform a dry run of the end-to-end upgrade process with a test instance\n before you upgrade the production database. You might want to test the upgrade\n using a [clone](/sql/docs/mysql/clone-instance)\n instead of your production database to avoid any performance impact from the\n export on your production workload.\n\n In addition to validating that the upgrade completes successfully, run\n tests to ensure that the application behaves as expected on the upgraded\n database. If you haven't enabled [automatic storage increases](/sql/docs/mysql/instance-settings#automatic-storage-increase-2ndgen),\n take note of the disk storage used by the upgraded dry run instance to\n determine whether you need to increase the storage capacity for the\n production instance before upgrading.\n5. Decide when you want to upgrade.\n\n | **Note:** Upgrades require the instance to become unavailable for a period of time. Be sure to schedule your upgrade when database activity is low.\n\nMigrate your data\n-----------------\n\nTo migrate your data to a Cloud SQL instance running a more recent database\nversion, follow these steps:\n\n1. Create the instance with the target database major version.\n\n Make sure the target instance has:\n - Sufficient storage to hold all of the current instance's data.\n - The same authorized networks as the current instance. [Learn more](/sql/docs/mysql/configure-ip).\n - The same user accounts, with the same MySQL privileges and passwords.\n\n For more information, see [Creating an instance](/sql/docs/mysql/create-instance).\n2. Confirm that you can [connect to the new instance](/sql/docs/mysql/connect-admin-ip) with your local MySQL tools\n and update them if necessary.\n\n3. Put your current Cloud SQL instance into read-only mode by setting the\n `read_only` database flag to `On`.\n\n For information, see [Configure database flags](/sql/docs/mysql/flags).\n4. Export the current instance's data to a SQL dump file, following the\n instructions in\n [Export data for import into Cloud SQL](/sql/docs/mysql/import-export/import-export-sql).\n\n Do *not* export the `mysql` system database.\n5. [Create a Cloud Storage bucket](/storage/docs/creating-buckets)\n if needed, and upload your SQL dump file to the bucket.\n\n6. Import the data to the target instance, following the instructions in\n [Import MySQL databases from Cloud Storage](/sql/docs/mysql/import-export/import-export-sql).\n\n7. Optional. After completing the upgrade process, set up replication\n between the source and target instances by using an external server to update\n the target with all changes that have occurred since the initial dump was\n started. Once the two instances are in sync, you can promote the target\n instance.\n\n For information about using an external server to implement continuous\n replication, see [Replicating from an external server](/sql/docs/mysql/replication/replication-from-external_v1).\n8. Update your applications to connect to the new instance.\n\n9. When you're confident that your new instance is operating successfully,\n delete the old instance.\n\nWhat's next\n-----------\n\n- Learn about [Changes affecting upgrades to MySQL 8.4](https://dev.mysql.com/doc/refman/8.4/en/en/mysql-nutshell.html).\n- Learn about [Changes affecting upgrades to MySQL 8.0](https://dev.mysql.com/doc/refman/8.0/en/upgrading-from-previous-series.html).\n- Learn about [Changes affecting upgrades to MySQL 5.7](https://dev.mysql.com/doc/refman/5.7/en/upgrading-from-previous-series.html).\n- Learn about the [Database Migration Service](/database-migration/docs).\n- Learn about [importing and exporting data](/sql/docs/mysql/import-export).\n- Learn about [options for connecting to an instance](/sql/docs/mysql/external-connection-methods).\n- Learn about [setting MySQL flags](/sql/docs/mysql/flags)."]]
