EF6Demo

Code First with multiple initializers strategies :

• Nothing
• DropCreateAlways
• CreateIfNotExists
• NoPendingMigrations
• MigrateDatabaseToLatestVersion
• DropCreateDatabaseIfModelChanges

Questions & Answers

Question: What is the difference between Migrations Seed and Initializers Seed ?

Answer:

• Migration Seed method is for seeding data right after database migration.
• Initializer Seed method is for seeding data right after database initialization.
• You can use Initializer Seed method to add initial data to DB right after initialization.
• You can use Migration Seed method to check and/or add new data or do special things right after migration.

You may apply automatic migration by either using code or using cli/ps commands.

• Using code, you need to set DatabaseInitializerType to MigrateDatabaseToLatestVersion in program.cs
• Using cli command (Update-Database), you need to specify an automatic migration configuration type :
  • InsuranceEnableMigrationsV1
  • InsuranceEnableMigrationsV2

Update-Database Examples

Update-Database -Verbose -StartupProjectName App -ProjectName DataAccess -ConfigurationTypeName InsuranceEnableMigrationsV1

Update-Database -Verbose -StartupProjectName App -ProjectName DataAccess -ConfigurationTypeName InsuranceEnableMigrationsV2

Tools : vs19, net framework 4.7.2, entity framework 6.4