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Q.1 Briefly discuss the different layers of ANSI SPARC architecture.
Ans: The three layers of ANSI SPARC architecture are like this:
1. Internal view is at the lowest level of abstraction, closest to the physical storage method employed. It points out how the data will be stored and explains the data structures and access methods to be employed by the database. There is one internal view for the whole database.
2. Global or Conceptual View: At this level of abstraction all the database entities and the relationships between them are included. There is one conceptual view for the whole database.
3. External or User View: The external or user view is at the highest level of database abstraction in which just only those portions of the database concern to a user or application programme are involved. Some external or user views may exist for a specified global or conceptual view.
Attributes and its types explain?
What are the kinds of Strings? -A binary string in MySQL is one that MySQL treats as case sensitive in comparisons. -A non binary string in MySQL is one that MySQL does'nt
Increased parallelism : Since the replicated date has several copies a query can be distributed or can be answered from the smallest loaded site. Also, with more replicas you have
i have assignments I don''t have time to finish because of work and other assignments, can you help with this? All are from the book Darabase design, application development and a
deffine class&object
I need web security expert , website management Project Description: i want professional for the below . website management server management database management
This report identifies and outlines my CIS 499 project named Traffic Data Management Systems (TDMS) . My goal is to design a replica of all traffic issues to be implemented i
Sequential File Organisation The most necessary way to organise the collection of records in a file is to use sequential Organisation. Records of the file are stored in series
System R was developed and designed over a period of 1974-79 at IBM San Jose Research Company. Its purpose was to illustrate that it is possible to create a Relational System tha
How to draw an ER diagram to a finance companz
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