1. Migrations v2 Source Target

2. VersionScript 1… 2… Migrations v2 Source Target VersionScript 1… 2… 3… 4…

3. VersionScript 1… 2… 3… 4… Migrations v2 Source Target VersionScript 1… 2… 3… 4… Step 1 1.Deploy and execute migration scripts

4. VersionScript 1… 2… 3… 4… Migrations v2 Source Target VersionScript 1… 2… 3… 4… 1.Deploy and execute migration scripts 2.Use SQL Compare to deploy remaining changes Step 1 Step 2

5. VersionScript 1… 2… 3… 4… Migrations v2 Source Target VersionScript 1… 2… 3… 4… 1.Deploy and execute migration scripts 2.Use SQL Compare to deploy remaining changes Step 1 Step 2 BEGIN TRANSACTION COMMIT TRANSACTION

6. Migrations v2 Example migration script IF some condition BEGIN EXEC some script END

7. Migrations v2 Example migration script (renaming MyTable to MyTable2) DECLARE @ShouldRunMigrationScript BIT SET @ShouldRunMigrationScript = 1 IF (old dbo.MyTable does not exist) BEGIN SET @ShouldRunMigrationScript = 0; END IF @ShouldRunMigrationScript = 1 BEGIN EXEC sp_rename END

8. Migrations v2 Example migration script (renaming MyTable to MyTable2) DECLARE @ShouldRunMigrationScript BIT SET @ShouldRunMigrationScript = 1 IF NOT EXISTS (SELECT 1 FROM [information_schema].[Tables] WHERE table_schema = 'dbo' AND TABLE_NAME = ‘MyTable') BEGIN SET @ShouldRunMigrationScript = 0; PRINT 'Object ''[dbo].[MyTable]'' could not be found - skipping migration.'; END IF @ShouldRunMigrationScript = 1 BEGIN EXEC sp_rename '[dbo].[MyTable]', 'MyTable2' END

9. VersionScript 1… 2… 3… 4… Migrations v2 Source Target VersionScript 1… 2… 3… 4… 1.Deploy and execute migration scripts 2.Use SQL Compare to deploy remaining changes Step 1 Step 2 BEGIN TRANSACTION COMMIT TRANSACTION