In SqlDBD you can create successive versions of the database model and generate SQL update scripts. Such scripts are created based on the differences between selected versions of the model. This relieves the programmer from time-consuming analysis of database design changes and manual writing of scripts for each modification. 
To generate an update script, select at least two project versions and click Generate update script . Apart from the script, the user will receive (in the upper toolbar) information about how many objects were added, changed and how many were removed between versions.