SQL databases have constraints on data types and consistency. NoSQL does away with them for the sake of speed, flexibility, and scale. One of the most fundamental choices to make when developing ...

I'm competent with SQL for making queries, but this MySQL is driving me absolutely insane because I don't understand what MySQL is doing with FK constraints. I have a Django application where I ...

SQL Server 2000<BR><BR>I need to change the ... HR></BLOCKQUOTE><BR><BR>It lists a bunch of constraints. Now I'm assuming I can drop all the constraints, change collation, and then add them ...

By using cascading referential integrity constraints, you can define the actions that SQL Server 2005 takes when a user tries to delete or update a key to which existing foreign keys point.