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Project Description:
This is a Customer Management project. Customer data is presented in a text file. The program can load this text data into its database columns. The data mapping is user definable. User will also define a process to run on the data just before loading into database. Process will be as simple as converting the text to lowercase, uppercase and so on or more complex such as covert code into text e.g 01 becomes Mr, 02 becomes Ms and so on.
After load there is a deduplication. The user can select one or more data fields for the system to compare the contents. When the contents match according to a pre-defined percentage then the record is supposed a duplicate of each other. Duplicates are tagged as such and only the master record remains as valid.
Each record in the database is an individual. The ability to search and update records is a requirement.
Campaigns are run by defining a campaign and the criteria which will selects which customers will be selected. This can be tagged back to each customer record so that we know which customer previously in which campaign.
The preferred tools are SQL Server and VB.NET.
Skills required and .NET, SQL, Database Administration, Visual Basic
Explain data independence ? Data independence is the capacity to modify the schema at one stage of a database system without having to change the schema at the further level.
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Primary Key The primary key is the candidate key that is selected by the database designer as the principal denotes of identifying entities within an entity set. The left candi
Boyce-Codd Normal Form (BCNF) The relation NEWSTUDENT (Enrolmentno, Sno, Sname, Cname, Cno,) has every attributes participating in candidate keys as all the attributes are assu
Mention the purpose of SID and SOD lines SID (Serial input data line): It is an input line by which the microprocessor accepts serial data. SOD (Serial output data line)
Benefits: It limits data access. It makes difficult queries look easy. It permits data independence. It presents dissimilar views of the similar data.
Process to find the non-concurrent objects Once we find out non-concurrent (mutually exclusive) objects, we can fold all objects together in one thread of process or control. O
1. Use the Invoice table structure shown below to answer the following questions: a) Draw the dependency diagram and identify the primary key and all dependencies, including al
Example RELATION SCHEMA for STUDENT: STUDENT (Roll No: string, name: string, login: string, age: integer) RELATION INSTANCE
Partial Key : It is a group of attributes that can uniquely identify small entities and that are related to same base entity. It is sometime named as Discriminator. Altern
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