Stefan Hornburg (Racke)
Update with records from another table
update subject_cloud set count = count + 1 from (select subject from subjects where sku = '9780520241329') as subs where subs.subject = subject_cloud.subject;
update subject_cloud set count = count + 1 from (select subject from subjects where sku = '9780520241329') as subs where subs.subject = subject_cloud.subject;