To compare and synchronize the user-defined Data Types of two databases, just go through the following steps.
Step 1: Open SQL Server Comparison Expert, click "Connection" button, then the connection dialog pops up.
Step 2: Click "Option" to open the Project Option, you can select the Object Types (User-defined Data Types) to compare. Click "OK" to continue.
Step 3: Click "OK" in the connection dialog, select the "Compare" button to compare the differences between the two databases user-defined Data Types.
Step 4: Click "
Synchronize", you can find the differences of user-defined Data Types shown on the script.
Step 5: Click on "Sync", then you will be prompted to backup the target database. If you want to backup manually, please choose "No" in the confirm dialog.
Step 6: Click "
Yes" and you will see the action status changed from "

" to "

". This tells you that the user defined data types synchronization has been completed successfully.