Question
What is join dependency and inclusion dependency?
Answers
Join Dependency:
A Join dependency is generalization of Multivalued dependency.A JD {R1, R2, ..., Rn} is said to hold over a relation R if R1, R2, R3, ..., Rn is a lossless-join decomposition of R . There is no set of sound and complete inference rules for JD.
Inclusion Dependency:
An Inclusion Dependency is a statement of the form that some columns of a relation are contained in other columns. A foreign key constraint is an example of inclusion dependency.   Your Comment




  • Contributors: *,
More Software Questions..
What is the inputsplit in map reduce software?
What is software configuration management?
What Is Java Api For Xml-based Rpc (jax-rpc)?
How can you implement fine-grained auditing?
What is IBM’s simple explanation for Big Data’s four critical features?
What is static synchronized method in JDBC API? Give an example?
What does the NULLIF function do?
What happens if a start method is not invoked and the run method is directly invoked?
Should we override finalize method
what is the difference between mysql_fetch_array and mysql_fetch_object?
How will XML affect my document links?
Why to use Style Sheets?
What are Filters in MVC?
Can you explain Application layer in OSI model?
How to define new testplan attributes?
What are the minimum system requirements to run Photoshop? Is it possible to run Photoshop over linux?
Which oracle package is used to manage the oracle lock management services?
What is Latch Up? Explain Latch Up with cross section of a CMOS Inverter. How do you avoid Latch Up?
What is marker interface?
What types of partitioning are there for BW?


Search
Can you Answer!!
  • Q Upon which development the Second Five Year Plan laid mote stress?
  • Q What do you know about our company and why are you interested in working/interning with us?
  • Q How many statistical objects can be selected in when you post an FI document? Where CCtr, PCtr, OM are active?
  • Q What characteristics would you seek in a candidate for test-group manager?
  • Q We can't control the weather: how reliable are wind and solar really?
  • Q What is your aim?
  • Q What is the procedure for preparing a trial balance?
  • Q What is a volatile keyword? How it helps in the embedded perspective?
  • Q What stadium nicknamed 'The House That Ruth Built' closed in November 2008?
  • Q Explain the procedure of clearing BIOS via MS-DOS.
  • Q Differentiate between static and dynamic modeling.