Call Back

24x7 Support Available

chat now

In A Hurry? Get A Callback

Back All services
• Assignment Help
• Back All services
• Assignment Services
• Engineering
• Mechanical
• Basic Subjects
• Law
• Management
• Accounting and Finance
• Programming
• Medical
• Humanities
• Homework
• Back All services
• Homework help
• Writing Services
• Back All services
• Writing Services help
• Dissertation
• Back All services
• Dissertation help
• Universities
• Back All services
• Assignment by Universities
• city
• Back All services
• Assignment by City
• country
• Back All services
• Assignment by Country

Continued assistance through writing and revision till final submission by the professional and experienced writers.

• 10 subjects

• 2,10,1000
solved Questions

• 500 Solved Questions

in Seconds

### Given two relations R and S such that R contains two attributes A and B and S contains only one attribute B. Implement the division operator R/S by using other relational algebra operators

Question Preview:

Given two relations R and S such that R contains two attributes A and B and S contains only one attribute B. Implement the division operator R/S by using other relational algebra operators (e.g., Cartesian product, projection, minus etc.). In other words, the final result obtained by your relational algebra expressions must be the same as the result obtained by R/S.

2. Suppose that a page can contain at most 4 data values and all data values are integers. Using B+ trees of order 2, give examples of each of the following:
a) a B+ tree with number of levels changed from...

View complete question »

Question Preview:

Given two relations R and S such that R contains two attributes A and B and S contains only one attribute B. Implement the division operator R/S by using other relational algebra operators (e.g., Cartesian product, projection, minus etc.). In other words, the final result obtained by your relational algebra expressions must be the same as the result obtained by R/S.

2. Suppose that a page can contain at most 4 data values and all data values are integers. Using B+ trees of order 2, give examples of each of the following:
a) a B+ tree with number of levels changed from 1 to 2 when the value 60 is inserted. Show your structure before and after the insertion.
b) a B+ tree in which the deletion of the value 10 leads to a redistribution. Show your structure before and after the deletion.
3. For each of the following transactions, determine if it is conflict serializable or not? Show your working.
a. 1) W1(X), R2(X), R1(Y), R3(X), W3(Y), R3(Y), R2(Y)
b. 2) R1(X), W2(X), W2(Y), W3(Y), R1(Y)

View less »

### Solution preview

Let consider R and S relation Tuples

Get solution

WhatsApp Order WhatsApp Order