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external and internal mapping with examples
An instance of relational schema R (A, B, C) has distinct values of A including NULL values. then A is a candidate key or not? If relational schema R (A, B, C) has distinct val
How can we Classify the operations on classes This step fundamentally means all three models functional, object and dynamic (studied in last section) must be combined so that
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
explain equi-join using illustration
er diagram of sport
brief history,definition,current trends and future trends if any of data fragmentation
please describe the data base management with the easy example &give the application?
What it creates while a primary key is combined with a foreign key? It creates Parent-Child relation ship between the tables that connect them while a primary key is combined w
What is Alternate Key Alternate Key: This is the candidate key which is not taken as the primary key of the table. They are named so because although not the primary key, the
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