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ER Diagram, Database Management System
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
Posted Date: 3/15/2013 12:43:32 PM | Location :
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Write a short note on participation role, write a short note on participati...
write a short note on participation role? Participation role: roles are indicating in E-R diagram by labelling the lines that connect diamonds to rectangles.
What is meant by normalization of data, What is meant by normalization of d...
What is meant by normalization of data? It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the prop
Explain olap and the benefits of olap, Data Mining 1. What is data mini...
Data Mining 1. What is data mining? Write Data Mining applications. 2. Explain OLAP? Write the benefits of OLAP. 3. What are the key features of a Data Warehouse? 4. W
Define entity integrity and referential integrity, Define entity integrity ...
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
E - r schema with weak entity, Consider the E/R schema with weak entity set...
Consider the E/R schema with weak entity sets shown below. Come up with the SQL CREATE TABLE statements (with appropriate primary key, unique and foreign key constraints). Include
Order by clause-data manipulation language, Order by clause By usin...
Order by clause By using this rows can be sorted It is used in the last portion of select statement By default it gets ascending order DESC: is used
Explain the use of constraints in functional model, Explain the use of cons...
Explain the use of constraints in functional model with suitable example. A constraint shows relationship between two objects at same time, or among various values of the sam
Explain the weak entity set, Explain the Weak Entity Set An Entity set...
Explain the Weak Entity Set An Entity set which does not have sufficient attribute to make a primay key is known as weak entity set. For instance, dependents of an employee in
Describe embedded query language, Describe Embedded Query Language? Emb...
Describe Embedded Query Language? Embedded Query Language - A query language (e.g., SQL) can be implemented in two ways. It can be used interactively or embedded within a host
To delete a particular column in a relation which command, To delete a part...
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
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