In decomposition technique of splitting a relation into_____ relation:

Related MCQs

• Given the relation Supplier(s_id, p_order, s_name, qty) Given that there is a unique s_name for each s_id and that s_id, p_order is a composite key, find the correct statement among the following: i. this relation is a BCNF ii. this is 3 NF relation iii. this is a 2 NF relation iv. this is a 1 NF relation
• The relation employee(ID,name,street,Credit,street,city,salary) is decomposed into employee1 (ID, name) employee2 (name, street, city, salary) This type of decomposition is called
• R (A,B,C,D) is a relation. Which of the following does not have a lossless join dependency preserving BCNF decomposition?
• Consider a schema R(A, B, C, D) and functional dependencies A -> B and C -> D. Then the decomposition of R into R1 (A, B) and R2(C, D) is
• An attribute in a relation is a foreign key if the                key from one relation is used as an attribute in that relation.
• The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as a primary key is called                              
• A                  on an attribute of a relation is a data structure that allows the database system to find those tuples in the relation that have a specified value for that attribute efficiently, without scanning through all the tuples of the relation.
• An attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation.
• The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as a primary key is called ______________
• A attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation .