3
votes
1answer
118 views

Restrict record to be update or deleted according to dates inside row for SQL Server 2005

I have transaction replication between two SQL Servers. For testing purposes I deleted a lot of records at the subscriber that still existed at the publisher. I now know that if someone updates, ...
4
votes
3answers
549 views

Making a column immutable in MySQL

I want to make a column in a relation unmodifyable for consistency reasons. The backstory is that I have a n:n relationship where the "connecting" relation has additional values. I don't want that ...