I am new into programming world, I am working on some project where I have to create a database of some Projects. Below are details.

There are 3 tables Project Details, Consultant and Invoices Trackers.

1. Project table has information about all projects. Like ProID, ProDescription,ActivityID,Total Capital, Amount spent per Activity, Owner and Expect completion Date.
2. Consultant table has FirstName,LastName,ConsultingCmpny,
3. Invoice tracker table will contain all the invoices that are realted to projects, The table must contain following data. Cmpny, Desc, Billing Period, Consultant Fname, Consultant Lname, ID, Invoice number, Amount, ProjectID, Invoice Approver.

Realtionship.

Consultant and Project are related with Project Desc.

Project & Invoice are related with Project Activity ID.

Consultant and Invoice are related with Some ID (I have to create.)

Can some help me to achieve my goal.

Regards

Eigen.

Thanks

Eigen.

As an example you could fire up Access and have your project in about 20 minutes.  

You could fire up Visual Studio (Professional Edition) and use the database tools to create an "object" based solution.  It, depending upon the version you own could even create the database in a SQLEXPRESS edition SQL Server for you.  You could then use the various wizards within Visual Studio to create a virtually code free solution to interact with the database you just created.

If you are restricted to tools which are not quite so friendly you can do it "old school".  For example using MySQL you can manually create the database tables.  You could then use the Express editions of .NET (pick your favorite language) and write the code to interface your program to the MySQL database.  This of course would require the most coding on your part as you would likely have to construct SQL expressions to perform your updates.  Of course this is probably the goal of your assignment - to actually learn how to code.

Eigen

4 hours ago, Eigenvector wrote

There are 3 tables Project Details, Consultant and Invoices Trackers.

1. Project table has information about all projects. Like ProID, ProDescription,ActivityID,Total Capital, Amount spent per Activity, Owner and Expect completion Date.
2. Consultant table has FirstName,LastName,ConsultingCmpny,
3. Invoice tracker table will contain all the invoices that are realted to projects, The table must contain following data. Cmpny, Desc, Billing Period, Consultant Fname, Consultant Lname, ID, Invoice number, Amount, ProjectID, Invoice Approver.

Realtionship.

Consultant and Project are related with Project Desc.

Project & Invoice are related with Project Activity ID.

Consultant and Invoice are related with Some ID (I have to create.)

You're going to need some more tables. I'm not sure about the carnality of your entities based upon your description of things. 

[Person](Id,FirstName,LastName)

[Owner](Id,PersonId)

[Project](Id,Description,OwnerId,Capital,StartedOn,DueOn)

[Activity](Id,Description)

[Company](Id,Name)

[Invoice](Id,CompanyId,ProjectId,ApproverId,AssignedOn,CompletedOn)

[Approver](Id,PersonId)

[Consultant](Id,CompanyId,PersonId)

[InvoiceLine](Id,Description,InvoiceId,ActivityId,Amount,ConsultantId,AssignedOn,CompletedOn)

[BillingPeriod](Id,Description,StartsOn,EndsOn)

With these, I think you can do everything you want to do, or maybe not, but it's a good start.

Thanks

Eigen.

You might want to combine project and invoice tables.

[Person](Id,FirstName,LastName)

[Company](Id,Name)

[Consultant](Id,CompanyId,PersonId,HourlyRate)

[Owner](Id,PersonId)

[Approver](Id,PersonId)

[Invoice](Id,Description,Capital,CompanyId,OwnerId,ApproverId,AssignedOn,DueOn,CompletedOn,ReceivedPaymentOn)

[Activity](Id,Description,EstimatedHours)

[InvoiceLine](Id,InvoiceId,ActivityId,ConsultantId,ActualHours,AssignedOn,CompletedOn)

[BillingPeriod](Id,Description,StartsOn,EndsOn)

Regards

Eigen

-Josh

Regards

Eigen

select i.*, (select description from BillingPeriod
where i.CompletedOn between StartsOn and EndsOn) as BillingPeriodDescription
from invoice i

1 hour ago, Eigenvector wrote

@JoshRoss: Hey Josh, Will you be able to help me out with update query, Like I make entry in Invoice table and my Project details table get updated. Activity ID is common between Invoice and Project table.

Regards

Eigen

That's just a poor design. I would highly recommend removing the Project table. Since projects are 1 to 1 with invoices, it makes more sense just to get rid of it all together. You could make a Project view based upon the Invoice table, if you needed something named Project.

-Josh

Thanks

Eigen.

11 hours ago, Eigenvector wrote

@JoshRoss: Thank you josh, I made all the table as you mentioned in last reply. I think  " i " is the variable which i need to define in the program initially, Is that correct?

 

Thanks

Eigen.

 

The i is just an alias for the invoice table.

Too bad it's dropped from Access 2003 and afterwards.