In questa pagina confermi che il job di migrazione ha eseguito correttamente la migrazione dei dati dall'istanza del database di origine all'istanza del database Cloud SQL di destinazione.
Verifica almeno che l'istanza del database e le relative tabelle esistano nell'istanza Cloud SQL. Puoi anche verificare il numero di righe o i contenuti esatti delle tabelle.
Esegui i comandi SQL per verificare la migrazione. Ad esempio:
Al prompt postgres, inserisci \list per elencare i database e verificare di vedere l'istanza del database di origine.
Al prompt postgres, inserisci \connect SOURCE_DB_NAME e, quando richiesto, inserisci la password per connetterti all'istanza del database e visualizzare le tabelle associate all'istanza. Il nome della richiesta cambia da postgres a SOURCE_DB_NAME.
Al prompt SOURCE_DB_NAME, inserisci \dt per visualizzare le tabelle di questa istanza.
Al prompt SOURCE_DB_NAME, inserisci GRANT cloudsqlexternalsync to USER; perché vuoi concedere a questo utente l'autorizzazione ad accedere ai dati nelle tabelle di questa istanza. Inoltre, sostituisci USER con il nome dell'utente che hai utilizzato per connetterti all'istanza del database di destinazione.
Al prompt SOURCE_DB_NAME, inserisci SELECT * from TABLE_NAME; per visualizzare le informazioni replicate da una tabella nell'istanza del database di origine.
Verifica di visualizzare le informazioni corrette nella tabella.
Verifica che i vincoli come chiavi primarie, chiavi esterne e indici siano stati migrati correttamente all'istanza del database Cloud SQL di destinazione.
Se tutto ciò che controlli è come previsto, significa che Database Migration Service ha eseguito correttamente la migrazione dei dati.
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Difficile da capire","hardToUnderstand","thumb-down"],["Informazioni o codice di esempio errati","incorrectInformationOrSampleCode","thumb-down"],["Mancano le informazioni o gli esempi di cui ho bisogno","missingTheInformationSamplesINeed","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-09-05 UTC."],[[["\u003cp\u003eThis guide helps verify that a database migration job has correctly transferred data from a source database to a destination Cloud SQL instance.\u003c/p\u003e\n"],["\u003cp\u003eThe basic verification process includes confirming the existence of the migrated database instance and its tables in the Cloud SQL instance.\u003c/p\u003e\n"],["\u003cp\u003eYou can also run SQL commands through the Cloud Shell to check the row counts or exact contents of migrated tables.\u003c/p\u003e\n"],["\u003cp\u003eTo check data integrity, one must grant specific user permissions to access table data via the cloud shell.\u003c/p\u003e\n"],["\u003cp\u003eChecking constraints such as primary keys, foreign keys, and indexes should also be verified in the destination database.\u003c/p\u003e\n"]]],[],null,["# Verify a migration\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n[MySQL](/database-migration/docs/mysql/verify-migration \"View this page for the MySQL version of Database Migration Service.\") \\| PostgreSQL \\| [PostgreSQL to AlloyDB](/database-migration/docs/postgresql-to-alloydb/verify-migration \"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\nVerifying a migration\n---------------------\n\nIn this page, you confirm that the migration job migrated data from your source database instance to the destination Cloud SQL database instance correctly.\n\n\u003cbr /\u003e\n\nAt a minimum, verify that the database instance and its tables exist in the\nCloud SQL instance. You can also verify the tables' row counts or exact\ncontents.\n\n\nThe following steps show a minimal example:\n\n1. Go to the [SQL Instances page](https://console.cloud.google.com/sql) in the Google Cloud console.\n2. Click the read replica entry of your migration job.\n3. Click the **Activate Cloud Shell** icon that appears in the upper-right region of the page.\n4. At the Cloud Shell prompt, press **Enter**.\n5. Optional: If an **Authorize Cloud Shell** dialog box appears, then click **Authorize**.\n6. At the **Enter password** prompt, enter the password that you either provided or that Database Migration Service generated for you in [Define and create the destination Cloud SQL instance](/database-migration/docs/mysql/create-migration-job#dest).\n7. Run SQL commands to verify the migration. For example:\n 1. At the **postgres** prompt, enter `\\list` to list the databases and verify that you see your source database instance.\n 2. At the **postgres** prompt, enter `\\connect `\u003cvar translate=\"no\"\u003eSOURCE_DB_NAME\u003c/var\u003e, and enter the password when prompted, to connect to the database instance and see the tables associated with the instance. The name of the prompt changes from `postgres` to \u003cvar translate=\"no\"\u003eSOURCE_DB_NAME\u003c/var\u003e.\n 3. At the \u003cvar translate=\"no\"\u003eSOURCE_DB_NAME\u003c/var\u003e prompt, enter `\\dt` to see the tables of this instance.\n 4. At the \u003cvar translate=\"no\"\u003eSOURCE_DB_NAME\u003c/var\u003e prompt, enter `GRANT cloudsqlexternalsync to `\u003cvar translate=\"no\"\u003eUSER\u003c/var\u003e`;` because you want to give this user permission to access the data in the tables of this instance. Also, replace \u003cvar translate=\"no\"\u003eUSER\u003c/var\u003e with the name of the user you used to connect to the destination database instance.\n 5. At the \u003cvar translate=\"no\"\u003eSOURCE_DB_NAME\u003c/var\u003e prompt, enter `SELECT * from `\u003cvar translate=\"no\"\u003eTABLE_NAME\u003c/var\u003e`;` to see the information that's replicated from a table in your source database instance.\n 6. Verify that you see the correct information in the table.\n8. Verify that constraints such as primary keys, foreign keys, and indexes were migrated to the destination Cloud SQL database instance correctly.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nIf everything you check is as you expect, then Database Migration Service has migrated the data correctly."]]
