Computer Science Homework Solutions

Need an update statement to populate two columns with decimal values based on POINT table

Here is the issue, a table namedPoints varchar(81) has values stored in a column named Point. There are two columns in the Points table, X and Y. Here is the code that created the table: REATE TABLE dbo.POINTS ( I INT IDENTITY NOT NULL ,Point varchar(81) NOT NULL ,X decimal(38,10) NULL ,Y decimal(38,10) NULL ) GO ...continues

A SQL Query to List Customers

A SQL query to list customers who did not have an order between 03/01/97 and 03/07/97 I have attached the two tables to be used. The query needs to output only those employees (employeeID, FirstName, LastName) if there is not an order date bewtween 03/01/1997 and 03/07/97.I need a sub-query used and no joins. I need the emplo ...continues

Outer Join

I have attached a Word document defining the dbo.Orders and dbo.Employees tables (Northwind database). The needed query is: List the EmployeeID, LastName, and FirstName of all employees who did not take an order between March 1 and March 7, 1997. USe an outer join. You must include the condition on OrderDate in the ON clause o ...continues

What are the differences between relational database models and object-oriented database models?

1a. What are the differences between relational database models and object-oriented database models? Discuss at least 2 differences at length (about 300 words). 1b. What are the different types of relationships that exist between tables?

Simple SQL Commands - Property Rental

Please see the attached file.

Why is the object-oriented database model gaining acceptance for developing applications and managing the hypermedia databases at business websites?

Why is the object-oriented database model gaining acceptance for developing applications and managing the hypermedia databases at business websites?

FDD Diagram

Draw the FDD from the FD below FD 1) Student must be signed up for at least one Course i) Registration Code ->Course Name 2) Given student may have taken a given exam on a certain date, receiving a grade for it: i) StudentRegistrationNumber + Course code + Date ->Mark 3) A Course will be taught be only one Lecturer ...continues

Need a script that uses a cursor

I am trying to create a script that uses a cursor based on the select statement: SELECT name, database_id FROM sys.databases The scope of the script is to build and execute a BACKUP DATABASE statement for all of the databases identified in the SELECT name statement. I created the following backup statement: BACKUP DATABASE ...continues

San Juan Sailboat Charters is an agent that leases sailboats to customers for a fee.

Can you please answer the questions at the end of the Case study this will help me study for my test? Thanks. San Juan Sailboat Charters is an agent that leases sailboats to customers for a fee. San Juan does not own any sailboats; it leases boats on behalf of the owners who wish to earn income when they are not using thei ...continues

If your organization was going to design a database and the developers told you they were going to use a flat file database instead of a relational or object oriented one, what would you say to them?

Can you please answer the following two questions to help me study for my test. Thanks 1. If your organization was going to design a database and the developers told you they were going to use a flat file database instead of a relational or object oriented one, what would you say to them? 2. Would you try to influence the ...continues

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