You will be able to bring your spouse, common-law partner and dependent children with you to Canada, as long as they also have valid visas and permits to do so.
In addition, they may be able to get their applications for a study permit, work permit or visitor visa processed quicker if you submit them at the same time as your SDS application.
You must ensure that you send a complete application for each of them at the same time you send your own, and indicate on your own application that you have family members coming with you to Canada in order for this to happen.