Sql constraintsa constraint is a rule or limitation that we place on the data in a database that we can put into a column(s). a constraint is part of the table. we can apply constraints when we create ...

Returns one row for each table constraint in the current database. This information schema view returns information about the objects to which the current user has permissions. To retrieve information ...

In SQL, a trigger is a set of instructions or procedures that are automatically executed, or "triggered," in response to certain events on a particular table or view.

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. Skip ...

The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do a better job of ...

Constraints in sql are used to define rules for the table and columns in a database and also make sure that data are accurate and trusted in the database. constraints are responsible for the ...

Returns one row for each alias data type in the current database that has a rule bound to it and that can be accessed by current user. To retrieve information from these views, specify the fully ...