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Question 1 Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls?
Question 2 With a necessary example explain (i) Basic Constructs of E-R Modeling (ii) E-R Notations
Question 3 Explain the first 3 Normal Forms taking the help of an un-normalized relation and reducing it to 3 NF
Question 4 Explain the concept of Data Mining? How it is related with data warehouse
Question 5 Write the SQL queries using Data Manipulation Language (DML) statements
Question 6 Create the payroll database considering table employee
Question: a) There are three concurrency problems, i.e. three types of potential mistake which could occur if concurrency control is not properly enforced in the database syst
Explain about database system structure? Storage manager Authorization and integrity manager Transaction manager File manager Buffer manager Storage manager
sir we want er diagram of bank management system in this main menu option as new account,deposit amount,withdraw amount,all acount holder list,modify account,close account
Different stages of DDLC ?
What are the two methods for dealing deadlock problem? The two procedures for dealing deadlock problem is deadlock detection and deadlock recovery.
Attributes and its types explain?
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict
create an e-r diagram usuing graphical dipicted software that could theoritically be used in resturant application
What is a cascading update? Referential integrity constraints needs that foreign key values in one table correspond to primary key values in another. If the value of the primar
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