How Is DBMS Better Than File Management System? How scores Of levels Of Abstraction Are in Attendance In DBMS? three levels How scores Of varieties Of Views Are in Attendance In DBMS? There are two kinds of database views: dynamic views and static views . Dynamic views can contain data transfer faraway from 1 or 2 tables and by default have all from the columns contrary to the specified table or tables . WHAT IS NULL Price Tag Sufficient reason Why For Example In DBMS? What is often a SQL NULL value? In terms from the Relational Databases database model , a NULL price level has shown an unknown price level . If we widen this type of theoretical explanation , the NULL selling price points to a unknown price level but this kind of unknown price level will not equivalent to your zero price level or perhaps a field…    read more