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Mixed fragmentation:Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some applications. In its place, mixed or hybrid fragmentation is needed. Mixed fragmentation having of a horizontal fragment that is vertically fragmented, or a vertical fragment that is then horizontally fragmented.
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
how design database from begining
What are stored and derived attributes? Stored attributes: The attributes keeps in a data base are known as stored attributes. Derived attributes: The attributes that are de
Explain degree of relation? Degree of a Relation - The degree or arity of a relation is the number of attributes n of its relation schema.
Explain Hierarchical Model ? Hierarchical Model - It was established to model several kinds of hierarchical organizations which exist in the real world. It uses tree structur
Define about the Stored Procedure - It's a set of T-SQL statements combined together to perform a single task formed by combining numerous small tasks. - When you essentiall
One-way Associations If an association is only traversed in single direction, then it is known as one-way association. It is implemented as a pointer or an attribute which con
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
what is union compatable?
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
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