+61-413 786 465
info@mywordsolution.com
Home >> DBMS
Concatenation operator
Example :
Printing name and job as one string as column name employees: SELECT ENAME||JOB "EMPLOYEES"
FROM EMP;
DBMS, Programming
Query 1: The bookstore has decided to keep track of the vendors' information. In order to do this, one new table will be added to the database. The schema for this table, as related to the existing tables, is the followi ...
Relational Database Exercise: You have been assigned to a new development team. A client is requesting a relational database system to manage their present store with the anticipation of adding more stores in the future. ...
SQL Transactions Exercises Consider table Item(name,price) where name is a key, and the following two concurrent transactions. T1: Begin Transaction; Update Item Set price = 2*price Where name = 'pencil'; Insert Into Ite ...
Select * From E, D, P WHERE E.dept=D.dept AND D.city=P.city AND D.budget>1M AND P.priority=A; Assuming relations have the same size and uniform distributions, what is the best plan with Nested Loop joins only? Write it a ...
Question: 1: Describe 1NF, 2NF, 3NF. 2: Explain why 4NF is a normal form more desirable than BCNF. The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
Database Design and Development Assignment - Assessment task - 1. Normalization a) Map the ERD, from the sample solution, into a set of relations in at least Third Normal Form (3NF). You must ensure that your relations m ...
Assignment - Scenario: Setup a Mock Phase 3 Clinical Trial for evaluating the efficacy of a Blood Pressure/Weight Loss/ or Muscle Strength Enhancement supplement. Assume that the testing takes place at a physician's offi ...
Question: Create an ERD for the following scenario. A small company ABC wants a database to keep track of internal company information. Â Given the following information create an ERD. The ABC Company has several departm ...
Question: Create an ERD for the following scenario. Once you submit you will get access to the correct way to create the ERD. Please watch the video and correct any errors in your submission and resubmit. A small company ...
SQL Assignment In these exercises, you'll enter and run your own SELECT statements. You will use the MyGuitarShop database for these queries. If you do not already have the MyGuitarShop database, the SQL script and the i ...
Start excelling in your Courses, Get help with Assignment Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.
Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As