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DBMS, Database Management System
to develop elrctronic database from manual forms
Posted Date: 9/15/2012 6:28:39 AM | Location : United States
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Joins, how can apply joins on table
how can apply joins on table
Construct an er diagram for a hospital, Construct an ER diagram for a hospi...
Construct an ER diagram for a hospital along with a set of patients and a set of medical doctors Associate with every patient a log of the several tests and examinations conducted.
Explain displaying an er schema as an er diagram, Explain the conventions f...
Explain the conventions for displaying an ER schema as an ER diagram? An E-R Diagram scheme might describe certain constraints to that the contents of a database must conform.
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.
Describe physical data independence, Describe Physical Data independence ? ...
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
Data replication, Data Replication "If a relation R has its copies kept...
Data Replication "If a relation R has its copies kept at two or more sites, then it is considered replicated". But why do we replicate a relation? There are several advan
What is primary index, Primary Index In primary index, there is a one-t...
Primary Index In primary index, there is a one-to-one relationship among the entries in the index table and the records in the major table. Primary index can be of two types:
Normalization-e-r mapping , Normalize the following table upto and includin...
Normalize the following table upto and including the 3NF. Submit a 1 page printout of only the final set of normalized tables in Data Architect. Just use Data Architect to do the t
Determine bcnf-dcnf and key relation, (A) For the relation; CarSales (R...
(A) For the relation; CarSales (RegNo, BuyerName, Address, SalesPerson, Make, Model, Commission) The following functional dependences hold, RegNo _ID à Make, Model Reg
Explain the check clause, Explain the Check Clause The CHECK clause is ...
Explain the Check Clause The CHECK clause is employed to at the end of a CREATE TABLE statement specify table constraints. This is known as table-based constraint because it ap
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