Is it better to immigrate to Canada or Australia for database work? Which side is easier to find the right job?

None of them are in short supply and cannot apply for skilled immigrants.

You can consider changing your local immigration status by studying abroad.

If your purpose is to immigrate through studying abroad, I suggest you apply for a postgraduate diploma course in a local public university, and then transfer to a local junior college course after obtaining a visa.

After completing at least 2 years of courses, you can get a 3-year work visa after graduation, and you can apply for immigration through the experience category after working 1 year.

If you are interested in applying for a local public institution in Toronto, such as centennial? University or seneca? University, I can get you the admission notice.