En esta página, se describen los trabajos de migración disponibles en Database Migration Service con
migraciones homogéneas: para instancias de destino preexistentes y las que
Database Migration Service crea en tu nombre durante la configuración del trabajo de migración.
Bases de datos de destino creadas por Database Migration Service
En la mayoría de los casos de migración, Database Migration Service crea una nueva instancia de base de datos de destino para ti como parte del flujo de creación del trabajo de migración. Si deseas que Database Migration Service cree la base de datos de destino por ti, sigue las instrucciones que se indican en Crea un trabajo de migración para una instancia de destino nueva.
Bases de datos de destino creadas fuera de Database Migration Service
Puedes crear tu instancia de base de datos de destino fuera de
Database Migration Service antes de configurar el trabajo de migración.
Este enfoque es especialmente útil cuando planeas usar Terraform o alguna otra
herramienta de infraestructura como código para administrar tu infraestructura.
Existen ciertas limitaciones que debes
considerar cuando quieras migrar a una instancia de destino
creada fuera de Database Migration Service. Para obtener más información, consulta Limitaciones conocidas.
[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Información o código de muestra incorrectos","incorrectInformationOrSampleCode","thumb-down"],["Faltan la información o los ejemplos que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-09-01 (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)."]]
