Database Administration Questions

Because a table can have only one primary key

An index is an optional structure associated with a table to have direct access to rows, which can be created to increase the performance of data retrieval. Index can be created on one or more columns of a table.

Alter database backup control file to trace

Maximim number of triggers that can be applied to a single table is 12

Silverlight 1 is purely AJAX and JavaScript based. All the code has to be written in JavaScript and XAML. 

 Silverlight 2 supports managed code. When the Silverlight 2 runtime is installed, it installs a limited version of the .NET runtime on the client machine

No.Minimal spanning tree assures that the total weight of the tree is kept at its minimum. But it doesn’t mean that the distance between any two nodes involved in the minimum-spanning tree is minimum.

Polish and Reverse Polish are the notations used in Evaluation of Arithmetic Expressions using prefix and postfix forms

The heterogeneous linked list contains different data types in its nodes and we need a link, pointer to connect them. It is not possible to use ordinary pointers for this. So we go for void pointer. Void pointer is capable of storing pointer to any type as it is a generic pointer type.