Store Locator; Database Structure

Dec 29, 2007

Hi i am creating a web page which will return the results of products, the store name and the distance of the store from the postcode which the user has put into a text box. My first question is how would my database structure look, below is what it looks like at the moment;

Company; companyID, companyName, companyAddressLine1, companyAddressLine2, companyPostcode.

and

Products;  productID, productName, companyID, price.

In order to achieve the proximity search how would i alter the "Company" table, as in what columns will need to be added or removed, thank you. 

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Store Locator, Database Structure

Dec 30, 2007

Hi i am creating a web page which will return the results of products, the store name and the distance of the store from the postcode which the user has put into a text box. My first question is how would my database structure look, below is what it looks like at the moment;

Company; companyID, companyName, companyAddressLine1, companyAddressLine2, companyPostcode.

and

Products; productID, productName, companyID, price.

In order to achieve the proximity search how would i alter the "Company" table, as in what columns will need to be added or removed, thank you

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Any possible workaround?

Thank

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Sep 25, 2007

Hello I am a final year student and for my final year project I have decided to try and create a price comparison website due to the fact that i feel it would be a good project to work on and develop my technical skills in C# and microsoft sql server 2005, since these are mainly the two programs I would say i have more experience with. Basically I want to create a website such as www.pricerunner.com. At this point in time i have started playing around with how i feel the database will look, in terms of tables and columns, below is what i have produced;
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Products
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Product_Price
 
I am now stuck as how i will link each company with a product bearing in mind a company will stock different categories of products, also do you think i need any more columns in any of the above tables, as well as am i missing out on anything, I am hoping someone with more knowlegde than myself can shed some knowledge on my problem, thank you.

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Nov 1, 2004

This is a sort of database structure question that could I guess apply to any type of database...

Say I have 4 production lines and I want to log serial numbers on the start of every line and off the end of every line.

Is there any advantage in having a separate table for each Production Line and serial number logging point? (i.e. t_Line1Start, t_Line1End, t_Line2Start etc) or is it just the same as having one big table and having a LineNumber field and a StartEnd field?

Is SQL Server just as happy dealing with fewer transactions to several tables as it is to many transactions to one table?

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Apr 9, 2008

Hi,
I have a question. I want to build a db for the following entities:
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cars
companies

each driver nay has a car (NULL or carId)
each driver belongs to company
each car belongs to company

The db structure I built is:
car(carId, companyId)
driver(driverId, companyId, carId)
company(companyId)

The problem is that in this structure driver from company a can have a car from company b.

but this situation is not possible.. How can I prevent such situation??

tnx

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I want to share with a relative a copy of my application (web based) he has his own SQL 2000 server but I do not want to give my data just the database so the application will run and he can start inputting his own data.

How can I do this like a backup which has everything but with no data.

I tried scripting it using the EM but it did not give me everything just the system db's

Thanks

Xavier

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Jan 11, 2008

I'm designing a web application that acts as business management software for many small autobody shops. This method was chosen because it creates a central point of administration for the software and I believe that a properly configured cluster of services will meet performance requirements. Using SQL Server 2k5 as my backend, I need to structure my DB(s) so that performance and size are kept to a minimum.

That being said, the first problem I encounter is in creating a structure that supports multiple businesses, each with their own unique dataset.

For example, each business will have work orders specific to their business. This necessitates a uniqueness constrained by businessID (hereafter titled "BizID") and WorkOrderID (WoID). The first solution I happened on was the simplest: A composite primary key composed of BizID (int) and WoID (int). The unfortunate consequence of this, as I soon realized, was that *every* table containing multiple business' data would need this composite key structure. The second problem with this method is that there is no such thing (to my knowledge) as a composite identity. I could identify WoID as the identity column, but it would not iterate WoID for BizID x properly if any other Biz added a work order to the table. (i.e. biz 1 adds three work orders (identitied 1, 2, 3), biz 2 adds one work order (would identity as 4) and Biz 1 adds another (would identity as 5), leaving us with 1, 2, 3, 4, 5 across two businesses, rather than 1, 2, 3, 4 for biz 1 and 1 for Biz 2)

The second idea I considered was one DB per business. I didn't consider that for very long, since I assumed size considerations would be blown out of the water if I had 50 business and 50 DBs. I could be wrong, as I am decidedly a novice at this. It does benefit from not putting all my eggs in one basket though and makes backup/recovery/troubleshooting much simpler.

The third idea I considered was one table per business. This suffers from the same issues as #2 above with not as many of the benefits.

Both ideas 2 and 3 would need a master table relating logins to the DBs they belong to, which would not be hard to implement at all, but the implications of using this method are unknown to me.


So quite obviously, I'm a novice at this. Perhaps I took a project on that was too big for my britches, but just getting out of college puts me in a good place to take a risk and I will learn a great deal from putting a complex (is it so?) system like this into action.

I appreciate any and all responses, thanks in advance for your replies!

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Jun 4, 2007

 I am thinking of doing a fake PC company site for my ASP project. so
what they will have is a chat, products with reviews, and users can
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Nov 26, 2007

Hey,
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Jan 29, 2008

Hi i have a student table and also an societies table,  and a student can belong to as many societies as possible, for example student John Taylor belongs to the Football society, rugby societey and dance society, where as student Jim Jenkins belongs to the Football society, rugby society, arts society and graphics society.
My tables so far look like this;
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Mar 31, 2008

Hello all!
I'm working on an application that requires a bit of tricky database development, and I was hoping to get some advice from you.
The best way to describe the application, is to use an example, and the best I can think of is Facebooks news feed, where you can see if any of your friends have become friends with other members, or joined any groups, if your friends have completed quizs, attended any meetups, got arrested at the weekend etc etc..
My application is similar, but requires a lot less features. It will only tell show you if any of your friends have become friends with other members, or joined any groups (example: your friend Dave is friends with Jane).
Currently in my database, I have... users table (that holds a list of registered users) friends table (that links users who have decided to become friends with other users)groups table (that holds different groups)user_joined_groups table (that links users to groups they have decided to join).
Its simple and it works fine.
So to get around the newsfeed problem, I thought of doing this, creating 2 new tables. The first table will hold the news type and give it an ID...
NewsTypeTable============NewsTypeID       NewsType1                       NewFriend2                       JoinedGroup
The next table will be FriendsNewsTable, and everytime a user joins a group, or makes a friend with another user, details are added in here...
FriendsNewsTable=============NewsID        NewsTypeID     FriendID       newFriendID         newGroupID         datecreated1                       1                   225                 156 2                       2                   95                                              52
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Matty
 
 

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What method would you suggest is the best way to deal with a website?

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I'm trying to design a site for parent conference scheduling.
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I would put a page something like this, after parent or student login, 1. they are asked to choose a date, 2.after the date is chosen, show available teacher names, 3, after the teachers are selected, for each teacher, it will show a list of radio buttons for parents to select the time period open, For example: 
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I think I will prepopulate the two tabels before conference time.
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Hi all,

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May 22, 2008



Greetings,

Have an interesting issue in a database I'm trying to design and I'm trying to find a better way to setup the structure, if there is one. Going to generic example of my issue.

StudentList --- This table is the list of all College Students(with Primary Key of StudentID)
MajorsList --- This is a table listing all of the majors available at the College (PK of MajorID)
CourseList --- This is the list of all of the courses at the school (PK of ClassID)


This college allows students to take 1 or more majors, with the number of majors unknown.
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-- -- (aka 1 StudentID -> 1+ Majors & 1 Major -> 1+ StudentID's)
The majors all have different numbers of courses in them.
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I'm looking to see if their is a better way of tieing together the Students -> Majors and Majors -> Courses.
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Currently, to tie the three tables together, I have made two Interrum tables:
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-- -- MajorID (FK tied to PrimaryKey MajorID in MajorList)
-- -- CourseID (FK tied to PrimaryKey CourseID in CourseList)

These tables give clear and definate ties between the tables, but my worry is that there is no primary key for these two tables, and no column in the tables is elledgeable for becoming PK, because, in this example the StudentMajors table can lis tthe studentID multiple times, each with a different MajorID. Sames goes with MajorCourses.

Is there a better structure method for reaching this same goal?

Additional, I don't know how to do a contraint that should be in place of:
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