ok i have a design question and since I am not a db designer I hope somebody can give me some insight into this...
I have an app that uses a treeview control to display a hierarchy of a machine assembly. Currently it only goes two levels deep (top level and a single subcomponent.
WHat I would like to do is enable my users to add n-deep levels to the top level machine. The problem with that is that I can't think of a way to store this in a DB and how the table(s) structure would look like.
It seems like this would be a classic problem in DB design, but that is where I lack knowledge so any help will be greatly appreciated
hi all.. if im about to start a new database.. how do i start? please advise on how do i start sketching a new db structure... how do u guys set up ur db table struc.. any software to do this designing? any links or tutorial will be appriciated..
After performing copy_only backup of the Database using the below query, I restored the Database and now I checked and found out that there is a discrepancy in the table structure of the restored Database.Its a scheduled backup job.one of the column of the table varchar(300) has been changed to varchar(200)
BACKUP DATABASE DBname TO DISK = N'D:BACKUPdbname.bak' WITH COPY_ONLY, NOFORMAT, NOINIT, NAME = N'Database Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 GO
Hello everyone,I have a webcontrol that uses database-structures alot, it uses the system tables in SQL to read column information from tables. To ease the load of the SQL server I have a property that stores this information in a cache and everything works fine.I am doing some research to find if there are anyway to get information from the SQL server that the structure from a table has changed.I want to know if a column or table has changed any values, like datatype, name, properties, etc.Any suggestions out there ?!
userfeatureuserName featureIda 1a 5b 1b 5b 9c 5 c 9 menuid Pid Name1 Administrator2 1 Create User3 1 Delete USer4 1 View log5 WSR6 5 X7 5 X8 5 X9 Manager10 9 Y11 9 Y Using the above table i want to create a treeview ie based on the user login. Please let me know if there is any previous sample to this situation.
I need to query a sql database with sql I need to return the data in a nested form ID, ParentID, Title I also need to know which level each item is with the query, making the result something like, ID, Title, Depth Any help?
Hi guys, i need some help here regrading my project
i would like to create a tree view diagram by importing my data from database and display it in the tree view.. however im not sure how to implement it
I have a query which is working fine. Is it possible that if the table3's column(Child) is only related to table 1 to show it under table 1 and not under table 2, but at the same time another (Child) has a parent in table 2 (which usually is the case) it will show under table 2 as its currently doing.
In other words Child column is directly under Table2's row column name (Father), but occasionally it comes under Table1 with no relation to Table 2.
How can I out put that in a query for a treeview? I am assuming that I will have to program the out come in c# also with 3 for loops and in the second loop I can check if the column is grandchild or Child and make that as a second row or 2nd node of treeview, but I am having a problem building a query in sql.
The query below shows all Parent, then child then grand child(all well and working), but what is desired is at times child takes place of a father.
declare @x as xml set @x = ( SELECT distinct Table1.AssetSysID, Table1.Asset_ID , Table1.FromLR, Table1.Asset_ID + ', ' + Table1.[Desc2] as GarndFather, Table2.ACISysID ,Table2.PAssetSysID, Table2.FeatureName + ', ' + Table2.[DESC] AS Father, Table3.ITMSysID ,Table3.Item_ID + ',' + Table3.[DESC] as Child
I have an ASP.NET web application that uses a Treeview control to display what can potentially be a very large data set. In the past, I would just run a recursive stored procedure in my database that would output the XML which I would save to a file. The Treeview used the XML file as its data source. I did this because it can take so long for the stored procedure to run (10 seconds or more) that, it isn't practical to have the treeview point directly to the stored procedure. This worked well enough because the data didn't change very often.
Now, it looks as if the application will be used in a production environment, and I really need to find a way to supply up-to-date data to the treeview in a dynamic way. I have tried creating a view that would provide XML and that would be updated any time the target table is updated but, that has not worked. I have also tried creating a trigger that would output to an XML file any time an edit was made (using the xp_cmdshell functionality) but, that has proven difficult as well.
Is there a simpler solution that I am just missing? I just want an up-to-date XML representation of the data that is a result of a recursive function.
Hi Everyone,I'm drawing a blank here and I am hoping someone can point me in the right direction. I have a table with the following columns (some omitted)IDGUIDPageNameParentPageID I want to build a hierarchical navigation system (2-tier). The conceptual problem that I am running into was getting this information from the same table. Initially I was going to use a nested repeater but I am thinking a treeview would be better. Anyway, the problem is the query. How would I start with something like this? Let's use the following as an exampleRows(ID '1', GUID '888....', PageName 'Page A', ParentPageID '-1')(ID '2', GUID '111....', PageName 'Page B', ParentPageID '-1')(ID '3', GUID '222....', PageName 'Page C', ParentPageID '-1')(ID '4', GUID '375....', PageName 'Page 1', ParentPageID '1')(ID '5', GUID '562....', PageName 'Page 2', ParentPageID '1')(ID '6', GUID '874....', PageName 'Page 3', ParentPageID '2') (ID '7', GUID '388....', PageName 'Page 4', ParentPageID '3') So, I want to be able to build a query so that I can do the followingPage A Page 1 Page 2Page B Page 3Page C Page 4 Any help would be greatly appreciated. Thanks!
I'm trying to insert data into locally stored database (SQL Server). The data I want inserted, is presented in a Treeview control and the data is fetched from a Webservice. The data is returned in form of a dataset. The treeview contains checkboxes allowing a user to select what to install in the locally stored database.
To sum up:
1. Get data from a webservice' not my problem 2. Present data in a Treview control' not my problem 3. Allow to user to select which data to install' not my problem 4. Insert data that the user has selected into my db' MY PROBLEM!!!!
The Treeview is generated with DataRelations between Group and Rule.
My locally stored database is designed by a third party provider and therefore the database must not be altered. The table I want to store data in is called "Groups" and it looks like this:
GroupID uniqueidentifier ' (newid()) GroupName nvarchar(50) ParentGroupID uniqueidentifier' if grouptype = 0 then ParentGroupID must have a value. GroupType tinyint ' 0 = subgroup, 1 = "top"group
The third party also created a stored procedure called pr_AddGroup taking the following parameters:
@GroupName ' can be both the RuleName and the GroupName @GroupType ' can be 0 for subgroup or 1 for "top"group @ParentGroup ' GUID
The problem with this stored procedure is that it does not have return value, which is here my problem actually lies. If it returned @@IDENTITY I could use this as the parameter for @ParentGroup. Instead I figure I must create two sqlCommand's (one calling pr_AddGroup and another calling SELECT @@IDENTITY to get the newly created record).
My SQL Commands look like this
Dim cmd As SqlCommand Dim Conn As SqlConnection = New SqlConnection Conn.ConnectionString = "Data Source=myServer;Initial Catalog=myTable;Integrated Security=SSPI" cmd = New SqlCommand cmd.CommandType = CommandType.StoredProcedure cmd.Connection = Conn cmd.CommandText = "pr_AddGroup"
dim cmd2 as SqlCommand cmd2 = new SqlCommand cmd2.commandtype = commandtype.Text cmd2.commandtext = "SELECT @@IDENTITY as ID FROM Groups" cmd2.connection = Conn
dim ParentGroupGUID as system.guid
To get the data inserted in the Groups table I would something like the following, but the code is very ugly (and it doesn't work either);
For Each Group In TreeView1.Nodes ' Loop through Groups If Group.Checked Then cmd.Parameters("@GroupName").Value = Group.Text.ToString cmd.Parameters("@GroupType").Value = 1
For Each Rule In Group.Nodes ' Loop through Rules. If Rule.Checked Then cmd.Parameters("@GroupName").Value = Group.Text.ToString cmd.Parameters("@GroupType").Value = 1 cmd.Parameters("@ParentGroup").value = ParentGroupGUID cmd.ExecuteNonquery() End If Next Next
I've spent the last 5 hours figuring out this problem, so ANY help is appreciated :-)
Hi,I'm using DB2 UDB 7.2.Also I'm doing some tests on SQL Server 2000 for some statements touse efectively.I didn't find any solution on Sql Server about WITH ... SELECTstructure of DB2.Is there any basic structure on Sql Server like WITH ... SELECTstructure?A Sample statement for WITH ... SELECT on DB2 like belowWITHtotals (code, amount)AS (SELECT code, SUM(amount) FROM trans1 GROUP BY codeUNION ALLSELECT code, SUM(amount) FROM trans2 GROUP BY code)SELECTcode, SUM(amount)FROM totalsGROUP BY code.............................Note: 'creating temp table and using it' maybe a solution.However i need to know the definition of the result set of Unionclause. I don't want to use this way.CREATE TABLE #totals (codechar(10), amount dec(15))GOINSERT INTO #totalsSELECT code, SUM(amount) FROM trans1 GROUP BY codeUNION ALLSELECT code, SUM(amount) FROM trans2 GROUP BY codeGOSELECT code, sum(amount) FROM #totals GROUP BY codeGOAny help would be appreciatedThanks in advanceMemduh
Ok, I'm doing a football database for fixtures and stuff. The problem I am having is that in a fixture, there is both a home, and an away team. The tables as a result are something like this:
It's not exactly like that, but you get the point. The question is, can I do a fixture query which results in one record per fixture, showing both teams details. The first in a hometeam field and the second in an away team field.
Fixture contains the details about the fixture like date and fixture id and has it been played
Team contains team info like team id, name, associated graphic
TeamFixture is the table which links the fixture to it's home and away team.
TeamFixture exists to prevent a many to many type relationship.
Make sense? Sorry if this turns out to be really easy, just can't get my head around it at the mo!
I would like to create a table called product. My objective is to get list of packages available for each product in data grid view column while selecting each product. Each product may have different packages type (eg:- Nos, CTN, OTR etc). Some product may have two packages and some for 3 packages etc. Quantity in each packages also may be differ ( for eg:- for some CTN may contain 12 nos or in other case 8 nos etc). Prices for each packages also will be different that also need to show. How to design the table..
Product name : Nestle milk | Rainbow milk packages : CTN,OTR, NOs |
CTN, NOs Price: 50,20,5 | 40,6
(Remarks for your reference):CTN=10nos, OTR=4 nos | CTN=8 Nos
One company can have many site addresses; One company can have many trades And one trade can have many activities.
Ok seems very basic at this stage does'nt it, but if i give some data the complexity changes completly for example:
the trades are as follows: TRADE TABLE ID 1: DESC: Printing ID 2: DESC: Artwork ID 3: DESC: Photography ID 4: DESC: Reprographics.
now in this case only the printing trade has activities: TRADE ACTIVITIES TABLE ID 1: DESC: Flexo ID 2: DESC: Digital
So, in the above i am saying which ever company picks Printing as there trade, then they have the option of specifying which particular printing trade it is that they do.
Again simple enough by using one-to-many from the Trade Table to the Trade Activity table.
The problem is that not all trades have associated trade activities, for example the artwork trade activity is just artwork, but i need to be able to allow this to be so in the future.
When I try to create a view to select a particular company, with there associated trade and trade activity, I do not get any result at all because not all of the trade activities have any records assigned to them.
Please can anyone help.
I need to be able to pull back all companies with their associated trades and associated trade activities.
As my learning process continues, I have found that Database structure is probably the most important & most difficutl part of development. Like database normallization etc.
How can I master database structure, ? but I want learning other than any database software like Access or SQL Server, I m looking for a generallized learning.
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; Company Company_ID Company_name ADDRESS Website link contact Products Product_ID Product_name Product_Category 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.
Structure Number1 Category: CategoryId(P.K.), UniqueName, CreatedDate, ModifiedDateCategoryNative: CategoryId(F.K.), LanguageId(F.K.), NativeName, Description, Importance, IsVisible, CreatedDate, ModifiedDate Structure Number2 Category: CategoryId(P.K.), UniqueName, CreatedDate, ModifiedDateCategoryNative: CategoryNativeId(P.K.), CategoryId(F.K.), LanguageId(F.K.), NativeName, Description, Importance, IsVisible, CreatedDate, ModifiedDate Can anyone tell me that between above 2 structure what is better and why? I just add CategoryNativeId(P.K.) in Number 2 structure.
I'm sure there is a simple way to do this but I cannot think of it.I have an ASP.NET application that I am publishing to a webhost. I have chosen to use FTP to copy my files (aspx, etc.). They work as far as links etc. Now, the next step is to create my SQL database on their server as they instruct, which I have done in name only. (Oh, if it makes a difference, I access the hosting service using Plesk control panel.) Is there any simple way to get my database structure from my PC to the host server? All responses welcome. Thanks.
Our company would like to start using SQL 7.0 Snapshot replication for some of our customers. My problem is that we often have to make changes to the actual structure of the DB. Will I need to disable replication each time we need to make a change to the db structure on the publisher and subscribers?? Thank you...
Hi All, I need to get some info on how I can get the script of the entire database stucture. I need to write a procedure to do this. I know in SQL Server I could get the script in a mouse click. But I need to write a procedure to do the task. Is there a package in SQL Server that I could use to accomplish this task? Any thoughts will be of help. Thanks in advance. sj
Could anybody tell me the detail structure of the .mdf file. Actully I want to read the mdf file with out using MS SQL 2000. I know few details like it has 96 bytes header and pages are divided in 8Kb etc. But I want to know the exact details, so that I can read the Table names and columns at least.
I am very new to SQL server, and am completely stumped here. I need to transfer the data from an old database to a new one (both SQL Server 6.5 DBs.) The only problem is that the database has been restructured, and I can't for the life of me figure out how to get the data imported. I am working on manually making all of the structure changes, but there must be a better way. Any ideas? Thank you SO much!
When you attach an MDF that was created using SQL 7.0 to SQL Server 2000, the MDF file structure gets updated. The resulting MDF can no longer be used by SQL 7.0.
My Question: does anyone know how to read the file structure version of a detached MDF file?
If the file structure is 7.0, I would like to warn the user and allow her to cancel the attach + conversion to SQL 2000.
I a DB deployed in the field at numerous customer sites. I have made changes to the DB in my dev environment and now I need a way to update the DBs out in the field to the new DB structure. Examples of updates are adding a new column to a table, or adding some more code to a stored proc.
So what do I do ? I need to be able to email comething to the customer that they can run that will make my recent updates to their DB structure. It can't screw up their existing data either.
So what's the solution ? A big SQL script wil ALTER TABLE commands ? How do I updated stored procs through a script ? I need help seriously. What is the accepted industry standard method of updating deployed DBs when a new version is released ? Please Please help.
I have 2 databases with corresponding history databases. As the system is under development, the 2 databases are changing in structure i.e the table structure(new tables as well as changes to existing ones) and indexes will change every week. What is the best solution to replicate the changes on the history database.
