ERD diagram problem

I have created a new blank diagram in ERD (Oracle 9i Designer with newly installed designer repository).
When I click on New Entity icon an point a new entity rectangular on diagram 'Create Entity' window becomes available. Then after filling 'Name', 'Short name' and 'Plural' fields 'OK' button becomes available - just like in tutorial :) but when I click the 'OK' button .... nothing happens. Why? How? How to make a new entity? What I am doing wrong? 'Cancel' and 'Help' buttons work fine.

Try this:
After creating your entity, select from the ERD menu bar: "View" then "Zoom Out" -- or press together the CTRL and "-" keys. Repeat until you can see your entire diagram.

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SD TABLES ERD DIAGRAMS IN VISIO

hi,
anybody can plaese send me the erd diagrams for the sd tables.i will be highly thankfull to you
regards,
Ronie

http://www.sapgenie.com/abap/tables_sd.htm
Br, Jacek
Please Reward if taht information was helpfull
Message was edited by: Jacek S³owikowski

Remove Entity from ERD Diagram

I have an ERD diagram with several entities on it. I have also
included an entity from another container on that diagram. But
no matter what I do, I cannot remove the included entity from
the diagram without deleting the entire entity.
How do I get rid of the entity on my ERD diagram without
deleting the entity? I've tried checking out/in every
combination of owning container, owning diagram, the entity
itself. I never get an option to delete the reference from my
diagram. I've been doing all this in RON. The erd diagrammer
tool only gives me the option to delete the whole entity.

Did you try to cut it? that is, you should Ctrl+X if you want
to get rid of an entity only from your ERD.

Generating ERD diagram

Hi,
I would like to know how should I generate ERD diagram for already available database without using tool. I mean, already they developed database without ERD, Now I have to generate ERD. Please help me.
Thanks
Kumar

> Any civilised persan knows that Pink Floyd never made
a decent song after Interstellar Overdrive and most
of the earlier ones were pretty ropey too. But as
you're a foreigner we'll let you off just this once.
Sheez.. calling a colonial a foreigner. Shame on you! ;-)
As for decent songs. Pink Floyd (with apologies to Dave and the guys) is Roger Waters. One of the best Pink Floydish concept albums is Amused to Death.
> As far as I know the only free (beer) modeller which
comes in a Linux flavour is DB Designer
but that is a generic database tool.
Thanks. Will have a look. Suppose to use EA (Enterprise Architect). Have version 7. But I prefer to use my Linux box for most of my development & design work. Hmm... suppose I need to install WINE and see if I can get the thing to work with Beryl.. (Java is not happy with Beryl and I get Java windows with blank gray canvasses).

Sample erd diagrams

Hi all.
Im lookink some sample (5-6 entity) erd diagrams to learn.
it can be in pdf or oracle designer format.
Can someone know some good site ?
Thanks.

Hi ,
Take a look at the following:
http://www.oracle.com/technology/products/designer/9i_collateral.htm
http://www.oracle.com/technology/products/designer/demos.htm
and specifically ....
http://www.oracle.com/technology/products/designer/viewlets/9i_des_create_erd/9i_des_create_erd.swf
Regards,
Simon
Message was edited by:
sgalaxy

Activity Diagram Problem

I cannot place a And Fork/Join object in an activity diagram. The other tools seem to work OK for activity diagrams, but not this one. Am I missing some concept here?

Hi!
Are you actually getting a message displayed when trying to create an AND. There is no special technique, you just need to select it in the component palette and then click on the diagram to be created.
Are you just getting this problem on one diagram or all diagrams?
If you run with jdev.exe rather than jdevw.exe do you get anything printed to the console window?
Thanks,
Lisa
JDev QA

Error when save ERD diagram -an unnamed file contains invalid path

Hello,
When I try to save diagram I receive message "an unnamed file contains invalid path". Objects added to diagram are saved to repository but diagram is not...
I'm using Designer 10g on Windows Server 2003

I seem to remember there was a bug running certain of the Developer Suite products on Windows Server 2003. Think it was something to do with 10g versions and a missing dll. Probably best to search Oracle Support ( Metalink). I would first check your versions of both Designer and the database are certified agains Windows Server 2003. Good luck

Struts Page Flow Diagram Problem

how can I prevent the struts page flow diagram from automatically modifying the associated source file? It seems whenever I click on the page flow diagram something automatically changes. This shouldn't be.

btw, it on JDev 10.1.2 but I've also seen it on 10.1.3 when working with JSF and it's graphical faces-config file. I can say that this makes developers very nervous when the graphical file starts modifing the source unexpectedly.

Please help me i cannot find the ERD of firfox today i present my assingment topic of firfox browser i cannot find the er diagram please help me about this?

can you give me the solution of this problem..........thanks firfox (love you)

this is the example but not complete yet
https://wiki.mozilla.org/Mozilla_UK/revamp
you see the erd diagram scroll down your page. But this is not complete yet I want the complete diagram .I didn't find real resources of interaction.

SQL Developer Create Table Statement to ERD Visio Diagram

I have the following Create table statement from SQL Developer and I am trying to generate an ERD Diagram using 2003 Visio. I was wondering what I need to do to convert the Create Table to an ERD Diagram Using Visio. Thanks
CREATE TABLE “TT_TEAM”.”HR_REVOKED_SECURITY_ORGS”
“ID” NUMBER NOT NULL ENABLE,
“ACAT_CODE” VARCHAR2(6 BYTE) NOT NULL ENABLE,
“APPR_SEQ_NO” NUMBER(3,0) NOT NULL ENABLE,
“USER_ID” VARCHAR2(30 BYTE) NOT NULL ENABLE,
“ACTION_IND” VARCHAR2(1 BYTE) NOT NULL ENABLE,
“ACTIVITY_DATE” DATE NOT NULL ENABLE,
“COAS_CODE” VARCHAR2(1 BYTE),
“ORGN_CODE” VARCHAR2(6 BYTE),
“POSN” VARCHAR2(6 BYTE) NOT NULL ENABLE,
“MANDATORY_APPR_IND” VARCHAR2(1 BYTE),
“APPR_POSN” VARCHAR2(6 BYTE),
“ORGN_MANAGER” VARCHAR2(6 BYTE) NOT NULL ENABLE;

I'm pretty Visio is a non-Oracle product.
In the mean-time, you can easily import a DDL script file and create a relational model/diagram using SQL Developer. Use the Import feature and point to your CREATE TABLE script(s)

ERD Design Issue Urgent help needed .

Hi ,
I'm designing a movie theatre system . I was drawing the ERD Diagram but I'm stuck .
One theatre can have many movies and One movie can be run on many shows .So I have created seperate Theatre and Movie tables and another associative table containing only MovieID and Theatre ID .
Now number of shows in a theatre are fixed .. Morning ,Evening and Night .
The problem comes when I want to find which movie is running on which theatre and what is the show timimg . If I create another table as show table having theatre id and showid (say 1 is Morning and so on ) then how to relate that with movie .I tried a lot but not being able to find out .
How will I design the tables so that they are in 3rd Normal form .Its a bit urgent.
Please help me out .
Regards,
Rahul .

Hi Rahul
If I were you, then to make it flexible i would have tables for
1) Theatre
2) Movie
3) Show
4) movie_show_theatre_mapping
And according to your design it should be
1) Theatre
2) Movie
3) Show table with foreign key to theatre
4) Show_movie_mapping
Here you can find the movie timing at a particular theatre by quering
show_movie_mapping and show table where theatre id is a foreign key in show table.
Regards

DB Diagram: Modality Difference between NOT NULL and check constraint

Hi,
I am using jdev 11g (11.1.1.10) I am trying to create a db diagram from two tables. I have a FK that is NOT NULL (defined on the column). When i try to display these two tables modality, it does not show up in the diagram. I noticed that there are two ways NOT null can be defined on a table (right click on the db object to edit it; a) under column definitions there is a check box for not null, b) there is a check constraint that one can add to do not null.
I am confused and was wondering whether I must I have check constraints on the database in order to display modality (optional versus mandatory). Logically speaking it does not make any sense though.

Hi Susan,
Thanks for your email. I understand that in order to show modality under
UML notation, one must define a COLUMN being NOT NULL instead of defining a check constraint.
I still do not understand how modality (optional versus mandatory) is shown in ERD notation in JDev. I tried flipping ERD/UML notations and made sure icons for tables were showing, but no MODALITY is shown in ERD notation ( an '0" icon or a "|" icon for optional and mandatory). Is it the solid line versus dotted line in the ERD diagram? I am confused because generally under Crawfoot ERD notation '0" icon or a "|" icon is shown for modality.
Modality gets picked up in jdev diagram when COLUMN not null is specified and UML notation is used
ALTER TABLE DETAILAJ MODIFY EMPID not null;
Modality does not get picked up in jdev db diagram when check constraint is specified and UML notation is used
ALTER TABLE DETAILAJ
ADD CONSTRAINT CK_NN_DETAILAJ__EMPID CHECK(EMPID IS NOT NULL) ;
Another question i have related to the matter mentioned above is as follows. Since I want to see modality in db diagram, it follows that I must define a column as not null instead of a check constraint. I must also use NO VALIDATE on NOT NULL column because i have prior data that does not meet the new restriction. I noticed that if i use the following syntax to define a NOT NULL column, two things happen.
a) A constraint is defined as not null automatically and a system generated name is given to the constraint.
b) DB diagram in Jdev does not show the modality.
My question is whether there is a way to see modality in this case.
alter table DETAILAJ
MODIFY EMPID NOT NULL ENABLE NOVALIDATE ;
Edited by: user11219846 on Nov 19, 2009 11:07 AM

How to open .erd extension files in windows system

Hi,
we generated erd diagram with TOAD application from oracle database that generated a file with .erd extension . but could not able to open .erd file in our windows system for review.. please help me out which tool/utility or free software help us to view or open .erd extension diagram documents in windows sytems?.. thanks

That's a Quest proprietary file extension. You need to use their Toad data modelling tool to look at those files. Unlike TOAD for Oracle there is no free version of Data Modeller. Find out more.
Cheers, APC
blog : http://radiofreetooting.blogspot.com

Database design (ERD )for Inventory Management System

Dear All,
I am going to develop a simple Inventory Management System software using C# .NET for my learning. After searching different forums, many people have suggested to first create a database design for the software. I want a database design, in short, an ERD
diagram for simple Inventory Management System which shows proper entities(tables), attributes and relationship between entities.
It would be highly helpful for me as I am newbie to C# and databases.
Thanks,
momersaleem

Dear Rebecca,
Thanks for you suggestions.
As I am going to develop IMS for learning purposes so I think I wouldn't need to go in detail regarding Customer name and addresses. However, I am still thinking of adding country attribute in customers' table which I think will be helpful to sort out customers.
What's the difference between a purchase and an order? They're usually the same thing, which doesn't mean you're
wrong, but what are you picturing here? Purchase entity will be used to keep record of purchases you made and an order entity will be used to keep record of orders that cutomers placed.
Pricing:
Any order system needs to manage two very distinct bits of data that are easy to confuse. The price in the Product entity is the current
price. The price in the Order entity is the selling
price. Not at all the same thing--current price is almost certainly going to change over time. Selling price won't.
Does it mean that I'll change the price attribute for product to current_price and add selling_price to order table which will help to keep record of price at the time of order?
Why did you include a quantity field in the Products table? Is it meant to represent stock on hand?
Yes you are right. It represents stock in hand.
Could you please recheck the entities relationships as I am not confirmed whether these are correct or not?
Thanks,
momersaleem

How to handle many tables in ERD

Hi:
I have a schema with about 400 tables in it. They tend to be grouped into 5-10 groups of related tables. In a perfect world, I'd be able to arrange them in an ERD diagram and zoom into the appropriate area when I want to work on that section but I wouldn't have to recreate the arrangement of the tables in the diagram. I'm not aware that OWB can do this. I don't even think it can save the diagram as anything but SVG, which means every time I want to work an ERD I have to recreate it? I have to select all the tables, maximize them, arrange them each time?
How do people normally handle hundreds of tables in OWB? Do you break the large schema up into numerous smaller source schemas and only end up with the large schema after deployment?
Thanks

I meant both, actually. I'm trying to create an ERD or set of ERDs to help me figure out what I need to do in a large (to me!) ETL project. I'm using OWB to create a new target schema based on a source schema. I'll be converting VARCHAR2(2000) and LONGs to CLOBS and consolidating tables and doing other stuff. An ERD would help me visualize the current schema and work on isolated pieces of it. Does that make sense?

ERD diagram problem

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