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What is conceptual schema?
The schemas at the view level are known as subschema that describe dissimilar views of the database.
Differance between procedural and non procedural DML? Procedural and non procedural DML Procedural DML exactly what data is require and how to obtain those data. Non procedural
how can apply joins on table
Explain the disadvantages of a file processing system? Ans: Disadvantages of File Processing Systems include: 1) Data Redundancy 2) Data Inconsistency 3) Difficult to acce
why are older data models are being replaced by new data models
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
growing phase and shrinking phase are disjoint, why ?
An entity type usually has an attribute whose values are distinct for every individual entity in the collection. Such an attribute is known as a key attribute and its values can be
Question: (a) One of the steps in the five-step problem-solving model is implementation. Implementation is considered a key step in the problem-solving model. A problem may be
Can you help me with the following: Drop statements for all objects in the lab project. Create statements for all objects of the lab project Create indexes for foreign keys Cre
cardnality ratio for humanresource mangement system
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