Database

29-Jan-09 4:00

On one of the databases could you try something like:

SELECT a.*, b.* 
FROM sometable as a 
     INNER JOIN 
     [;DATABASE=C:\...\database.mdb;PWD=yourpwd].othertable b 
     ON a.column = b.column
WHERE ...

The need to optimize rises from a bad design.My articles[^]

Re: MS Access Database

solomondevapaul12329-Jan-09 19:43

solomondevapaul123

29-Jan-09 19:43

Hi Mika Wendelius,
It is a great solution. Thanks a lot for the help.

Thanks
Solomon.S

Re: MS Access Database

Wendelius30-Jan-09 6:39

30-Jan-09 6:39

You're welcome.

P.s. I noticed that this was a cross-post. Next time, post only on one forum.

The need to optimize rises from a bad design.My articles[^]

Cross-Post

David Mujica29-Jan-09 4:40

David Mujica

29-Jan-09 4:40

This same question was posted in the Visual Basic Forum. Frown | :(

Try not to cross-post.

How to create DFD

Member 467943628-Jan-09 23:10

28-Jan-09 23:10

Hello Friends,

How to create DFD for my project documents.

My project definition is Inventory System.

Please help me.

Thanks in advance.

Pin

Wendelius29-Jan-09 4:03

29-Jan-09 4:03

I'm curious, what's DFD? Data Flow Diagram?

The need to optimize rises from a bad design.My articles[^]

Member 467943629-Jan-09 20:23

29-Jan-09 20:23

DFD Stands for Data Flow Diagram.

It is one kind of Graphical Representation of the flow of Data in Project.

For example my project is about Inventory Management System.

In My project there is :
Stock - inward
Stock - Outward
Customer
Suppliers
Bank
Order process
etc...

how to represent this using Data Flow Diagram. (dfd 1.0, 2.0...)

Please help me,

Thanks in advance.
Pin

Wendelius30-Jan-09 7:46

30-Jan-09 7:46

So could you use this: Creating Package Data Flow[^] or do you need to model database tables for describing a data flow.

The need to optimize rises from a bad design.My articles[^]

RC_Sebastien_C29-Jan-09 14:53

RC_Sebastien_C

29-Jan-09 14:53

Please clarify your question

"It reads like a B3 page (and for those who don't know what B3 is, it means bullsh*t Baffles Brains)" - Pete O'Hanlon

Member 467943629-Jan-09 20:25

29-Jan-09 20:25

DFD Stands for Data Flow Diagram.

It is one kind of Graphical Representation of the flow of Data in Project.

my project is about Inventory Management System.

In My project module is :
Stock - inward
Stock - Outward
Customer
Suppliers
Bank
etc...

how to represent this using Data Flow Diagram. (dfd 1.0, 2.0...)

Please help me,

Thanks in advance.
Pin

Ashfield29-Jan-09 21:06

Ashfield

29-Jan-09 21:06

And it sounds like a homework question. Ask your tutor or read a book. you never learn if someone else does it for you.

Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP

Member 467943629-Jan-09 22:35

29-Jan-09 22:35

You are absolutely right.

refer any site(if u have any) from which i can get basic idea.

thanks for your reply.
Pin

Aman786Singh28-Jan-09 20:34

Aman786Singh

28-Jan-09 20:34

Kindly Let Me know the maximum Value which is recommended for the rows in a particular table.
Some of my tables have more than 60 lakhs rows..
Kindly Suggest??????????

Thanks in Advance...

Ashfield28-Jan-09 21:14

Ashfield

28-Jan-09 21:14

There is no real limit, it is all dependant on disk space and hardware performance. You may want to look at partitioned tables for performance. Also when you get to these volumes of data indexing is crucial.

Bob
Ashfield Consultants Ltd
Proud to be a 2009 Code Project MVP

PIEBALDconsult29-Jan-09 5:43

PIEBALDconsult

29-Jan-09 5:43

As many as you need, and no more.

Member 467943629-Jan-09 23:19

29-Jan-09 23:19

http://msdn.microsoft.com/en-us/library/ms143432.aspx

Lookups

Mustafa Ismail Mustafa28-Jan-09 1:18

28-Jan-09 1:18

I have several multi-selection options and its becoming a pain to handle them in a n-n fashion, does SQL2K5 offer an alternative that I might use?

I'll give you an example. I have a patient and a patient can have several symptoms.

This would be the exact opposite of sending an array to the database, it'll be bringing back an array.

Don't forget to vote if the response was helpful

Sig history

"dad" Ishmail-Samuel Mustafa

Unix is a Four Letter Word, and Vi is a Two Letter Abbreviation

Wendelius28-Jan-09 1:28

28-Jan-09 1:28

So you have tables like the following?
Patient
- PatientId (PK)
- Name

Symptom
- SymptomId (PK)
- Description

PatientSymptom
- PatientId (FK)
- SymptomId (FK)

If so, what's the biggest pain in this?

The need to optimize rises from a bad design.My articles[^]

Mustafa Ismail Mustafa28-Jan-09 1:33

28-Jan-09 1:33

That is exactly how it is only you would have a "versioning" of it for the patient. So that for each admittance (the one you helped me out with this morning Smile | :)

) the patient can and most likely will have different symptoms. I just find it painful that it has to go like this, it sorta like sawing against the grain. Implementation wise its not difficult and one can easily knock up a view to end up with a comma separated list of symptoms.

I don't know, I guess I'm just complaining.

Don't forget to vote if the response was helpful

Sig history

"dad" Ishmail-Samuel Mustafa

Unix is a Four Letter Word, and Vi is a Two Letter Abbreviation

Wendelius28-Jan-09 1:42

28-Jan-09 1:42

Could you post any example what operation is painful or is it querying or something else? That would help to understand the problems and to give suggestions.

Based on our previous conversation I understood that you don't use surrogate keys (identity for example). If that's correct, perhaps the problems are related to that.

The need to optimize rises from a bad design.My articles[^]

Mustafa Ismail Mustafa28-Jan-09 2:27

28-Jan-09 2:27

I'm just whining because I had little sleep last night. My baby son is teething.

Don't forget to vote if the response was helpful

Sig history

"dad" Ishmail-Samuel Mustafa

Unix is a Four Letter Word, and Vi is a Two Letter Abbreviation

Wendelius28-Jan-09 2:53

28-Jan-09 2:53

Mustafa Ismail Mustafa wrote:
My baby son is teething

I remember those nights. Luckily it was always one or two nights at a time with both of my kids. If it helps you in anyway, it goes over soon. And then again if you start counting the good sides and the bad sides of having children, there's no question which count is higher Smile | :)

I wish you strength and hopefully you get a good night sleep after this day. Perhaps we continue searching another data modeling solution for you another day Smile | :)

The need to optimize rises from a bad design.My articles[^]

Mustafa Ismail Mustafa28-Jan-09 2:55

28-Jan-09 2:55

Yeah, he's a bundle of joy alright when the poor kid is not in pain.

Don't forget to vote if the response was helpful

Sig history

"dad" Ishmail-Samuel Mustafa

Unix is a Four Letter Word, and Vi is a Two Letter Abbreviation

Luc Pattyn28-Jan-09 5:06

Luc Pattyn

28-Jan-09 5:06

Mika Wendelius wrote:
what's the biggest pain in this?

(patient=OP, symptom=Headache) Big Grin | :-D

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Wendelius28-Jan-09 5:35