Find an error in the reduction from ER to relational diagram illustrated in Figure 3. (a) ER diagram (b) Relational diagram Figure 3. ER and associated relational diagram.
Blog
In the BCNF decomposition algorithm, suppose you use a funct…
In the BCNF decomposition algorithm, suppose you use a functional dependency to decompose a relation schema into and . What primary and foreign-key constraint do you expect to hold on the decomposed relations?
Suppose we are given a dataset and need to design a database…
Suppose we are given a dataset and need to design a database from it. In other words, we begin with a single relation schema containing all relevant attributes. Instead of developing an ER diagram, we decided to break this schema into multiple smaller, well-structured schemas based on functional dependencies. What is the process called when we break single schema into multiple smaller, well-structured schemas?
We reduced entity sets and relationship set to a set of rela…
We reduced entity sets and relationship set to a set of relation schemas as illustrated in Figure 1. (a) ER diagram (b) Relational diagram Figure 1. ER diagram (a) and associated relational diagram. How can we further optimize relational database design?
Which type of anode was invented specifically to dissipate h…
Which type of anode was invented specifically to dissipate heat from one spot during x-ray production?
_________ bonds form between amino acids during elongation.
_________ bonds form between amino acids during elongation.
What is the main purpose of a ground wire in an x-ray unit’s…
What is the main purpose of a ground wire in an x-ray unit’s switch box?
An estimated_________ DNA base pairs comprise the human geno…
An estimated_________ DNA base pairs comprise the human genome.
A benefit of alternative splicing of introns out of mRNAs is…
A benefit of alternative splicing of introns out of mRNAs is that
The main limitation of a drug that treats disease by alterin…
The main limitation of a drug that treats disease by altering chromatin remodeling is that