Esta página descreve as tarefas de migração disponíveis no serviço de migração de bases de dados com migrações homogéneas: para instâncias de destino pré-existentes e instâncias que o serviço de migração de bases de dados cria em seu nome durante a configuração da tarefa de migração.
Bases de dados de destino criadas pelo Database Migration Service
Na maioria dos cenários de migração, o Database Migration Service cria uma nova instância de base de dados de destino para si como parte do fluxo de criação da tarefa de migração. Se quiser que o Database Migration Service crie a base de dados de destino por si,
siga as orientações em
Crie uma tarefa de migração para uma nova instância de destino.
Bases de dados de destino criadas fora do Database Migration Service
Pode criar a instância da base de dados de destino fora do serviço de migração de bases de dados antes de configurar a tarefa de migração.
Esta abordagem é especialmente útil quando planeia usar o Terraform ou outras ferramentas de infraestrutura como código para gerir a sua infraestrutura.
Existem determinadas limitações que deve
ter em consideração quando quiser migrar para uma instância de destino
criada fora do Database Migration Service. Para mais informações, consulte o artigo
Limitações conhecidas.
[[["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 2025-08-21 UTC."],[[["\u003cp\u003eDatabase Migration Service supports homogeneous migrations to both pre-existing destination instances and new instances it creates during migration job setup.\u003c/p\u003e\n"],["\u003cp\u003eThe service can automatically create a new destination database instance as part of the migration job creation.\u003c/p\u003e\n"],["\u003cp\u003eUsers can also create the destination database instance independently, outside of the Database Migration Service, using tools like Terraform.\u003c/p\u003e\n"],["\u003cp\u003eMigrating to a pre-existing destination database instance has limitations that should be reviewed before starting, refer to the documentation on Known Limitations.\u003c/p\u003e\n"],["\u003cp\u003eDifferent instructions are provided based on whether you are migrating to a destination database created by Database Migration Service or one created outside of it.\u003c/p\u003e\n"]]],[],null,["# Migration job creation\n\n\u003cbr /\u003e\n\n[MySQL](/database-migration/docs/mysql/create-migration-job-intro \"View this page for the MySQL version of Database Migration Service.\") \\| PostgreSQL \\| [PostgreSQL to AlloyDB](/database-migration/docs/postgresql-to-alloydb/create-migration-job-intro \"View this page for the PostgreSQL to AlloyDB version of Database Migration Service.\")\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\nThis page describes the migration jobs available in Database Migration Service with\nhomogeneous migrations: for pre-existing destination instances, and ones that\nDatabase Migration Service creates on your behalf during the migration job configuration.\n\nDestination databases created by Database Migration Service\n-----------------------------------------------------------\n\nIn most migration scenarios, Database Migration Service creates a new destination database\ninstance for you as a part of the migration job creation flow. If you want\nDatabase Migration Service to create the destination database for you,\nfollow the guidance in\n[Create a migration job to a new destination instance](/database-migration/docs/postgres/create-migration-job).\n\nDestination databases created outside Database Migration Service\n----------------------------------------------------------------\n\nYou can create your destination database instance outside of\nDatabase Migration Service before you configure the migration job.\nThis approach is especially useful when you plan to utilize Terraform or other\ninfrastructure as code tools to manage your infrastructure.\n\nThere are certain limitations that you should\nconsider when you want to migrate to a destination instance\ncreated outside of Database Migration Service. For more information, see\n[Known Limitations](/database-migration/docs/postgres/known-limitations#existing-instance-limitations).\n\nIf you want to migrate to a destination database created outside of\nDatabase Migration Service, follow the guidance in\n[Create a migration job to an existing destination instance](/database-migration/docs/postgres/create-migration-job-existing-instance)."]]
