How do you test database migration?

Published by Charlie Davidson on

How do you test database migration?

Testing tips:

  1. Always take the most important dataset and data that have values in all columns.
  2. Verify the data types after the migration.
  3. Check the different time formats/zones, currencies etc.
  4. Check for data with special characters.
  5. Find data that should not be migrated.
  6. Check for duplicated data after migration.

How would you validate a data migration from one database to another?

How to Ensure a Successful Data Migration: 6 Critical Validation…

  1. Schema Validation.
  2. Cell-by-Cell Comparison using QuerySurge.
  3. Reconciliation Checks.
  4. NULL Validation.
  5. Ad Hoc Testing.
  6. Non-Functional Testing.

How do you compare data after data migration?

How to Compare Two Databases After Migration (2/3) – Comparing Row Counts by Leveraging Statistics

  1. Gather schemas statistics manually in the target database.
  2. Create a database link to the source database in the target database.
  3. Grant a system privilege to system in the target database.

How do you automate data migration testing?

Automating the Migration Testing Process: a 2-step process

  1. Quickly verifying table-to-table compares, validating hundreds of tables in minutes.
  2. Confirming that all rows have come over without issue and verifying row counts.
  3. Performing any necessary column-to-column compares.
  4. Verifying data types and data thresholds.

What is the difference between test strategy and test approach?

The test strategy is a set of instructions or protocols which explain the test design and determine how the test should be performed. Test strategy is an arrangement for characterizing the testing approach, and it answers to questions like what you need to complete and how you will achieve it.

What are the typical challenges of data migration?

8 Hurdles of a Data Migration

  • Poor Knowledge of Source Data.
  • Underestimating Data Analysis.
  • Lack of Integrated Processes.
  • Failure to Validate the Implementation.
  • Late Evaluation of the Final Results.
  • Lack of Collaboration.
  • Inappropriate use of Expertise.

Is data migration hard?

Data migrations are often complex undertakings that require careful planning and attention to detail. Businesses should consider these factors when approaching their data migration project. Depending on the type of workload involved, the data migration process may require some downtime.

What is the process of data migration?

Data migration is the process of moving data from one location to another, one format to another, or one application to another. These days, data migrations are often started as firms move from on-premises infrastructure and applications to cloud-based storage and applications to optimize or transform their company.

What are different testing strategies?

Software Testing Methodologies

  • Functional vs. Non-functional Testing.
  • Unit Testing. Unit testing is the first level of testing and is often performed by the developers themselves.
  • Integration Testing.
  • System Testing.
  • Acceptance Testing.
  • Performance Testing.
  • Security Testing.
  • Usability Testing.

How to test Entity Framework migration in Visual Studio?

If not, you’ve got some fixing to do. It’s easy to run this test in Visual Studio using the EF PowerShell commands in Package Manager Console. Run them in this order: You’ll know right away if something is wrong. Testing via PowerShell before committing your new migration is good.

How to add migration to a model in Visual Studio?

Now you can add make tweaks to your model classes run “Add-Migration migration_name” from the NuGet Package Manager and the app will automatically update the database when it runs. To test this out let’s add an Email field to the Person model then add a migration and run the app.

Are there any projects that cannot be migrated in Visual Studio 2017?

The article excludes project types that are no longer supported in Visual Studio 2017 and cannot therefore be migrated. The article also excludes supported project types that have no migration issues; that list is found on Platform Targeting and Compatibility.

Is it possible to apply migrations to a database?

It’s possible for the application itself to apply migrations programmatically, typically during startup. While productive for local development and testing of migrations, this approach is inappropriate for managing production databases, for the following reasons:

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