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.

Here's what the table structure looks like: What I need to do is set a constraint such that the WrenchingTool field can only contain ToolNumbers that have a corresponding ToolType of "Wrench." ...

When I am working with an Oracle database, I still find myself using SQL*Plus for many quick and dirty database queries. In particular, I often look up constraints in SQL*Plus. In this post ...

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 ...

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 ...

In announcing SQL Server Management Studio (SSMS ... and highlights those that are incompatible with Always Encrypted due to their data type, constraints, and other factors. For each field, the wizard ...