We are negotiating with a vendor and we have a few questions:
1) From a licensing point of view, what is a database? Can we install
multiple copies of SQLServer on one box? In that case, would each
copy be a different database?
2) Within a single SQL Server installation, I can create multiple
databases, as listed in the Enterprise Manager. I can switch among
them using "use ..." commands. Would these be treated as different
databases?
3) We have copies of our transactional database in identical
development, QC, and production environments. Is this a single
database, or 3 databases?
Hey guys, this is my first post here. I just joined recently and I am loving the videos as they've really helped me step into ASP.NET and VB. Just some background, I used to be a CS major several years ago and programmed in Java and C, though I only went through 2 years before I moved majors. I didn't like the focus of my universities program, and decided to pursue other options. Ironically, I am now delving back into programming, but with a focus on web development, hence learning VB and ASP.NET. Anyways I am developing my first web application and I needed some help.Basically, what the program does is allow users to login to this web site and then store private information, which they can then access at a later time from any computer that is connected to the web. I have already setup user membership by following the video (lesson 8 of the ASP.NET series - Securing your Web site with Membership and Login Controls) from the Learnvisualstudio.net series. I can login to my site just fine, as well as creating a new user etc. The next step is designing the SQL database, and setting up the page that retrieves a users data, allowing them to view the private information they've stored, as well as to edit, create, and delete information.Unfortunately, while I can see the broad method of doing this, I am a bit lost in actually implementing it. The first stumbling block I am coming across is the SQL database itself. I have attached an image of how I have the database designed so far. Note that the aspnet_user table is the one that ASP.NET creates automatically when you enable membership controls and such.So basically, a user logs in, and they are greeted with a list of all of the "stickies" they have created. Each sticky has a title, as well as up to 4 fields, and you can enter the name of the field, as well as enter the actual data. It's foreign key ties back to the UserId that ASP.NET already created. The user can also organize their stickies into categories, hence that table. The Settings table will be where a users settings will be saved, such as which view mode they prefer etc. At this stage of development, that table is un-important and un-developed.So on to some of my questions. As it is designed now, there will be one table with every users stickies, as well as categories, and when a user logs in, the program will look at the category and stickies tables, and grab the ones that are associated to the users UserId. So one of my first questions is; is this a good design? I ask this from a security standpoint as well as a speed and efficiency standpoint. I want this site to be able to support at least 50,000 to 100,000 users, each with any number of "stickies" and "categories" With that size of a user base, would each user be looking at massive load times because the program would have to go through a very large table to grab only the ones that are linked with the users UserId? Say I have 50,000 users, and each user has 5 "stickies", that means that my user_stickies table would have 250,000 rows of data, and the program would be trying to find only 5 of those. Is this a really inefficient way of doing this? Should each user have their own category and stickies table? If so, how would I go about doing this? And in that case, instead of having a couple giant tables, my SQL DB would instead have a ton of tables, is this even any better?I have other questions, but I guess I'll start with this. What are your guys' thoughts? I am a newbie, so this may be a silly set of questions. I try to read up and research as much myself as I can, but sometimes you have so much information thrown at you at once its hard to grab out the specific answers you need.
I’m trying to design a database that allows the users to give each individual client/company unlimited addresses and salutations. I can build the design that accommodates this, but I cannot figure out how to handle them knowing which salutation to use with a mailing they might do to the clients.
I have put the Company Name and Position (title) in the address table so that when doing a mailing the company name and title are associated with the company address being mailed too. But again, I’m not sure how they would choose a salutation if they have many choices.
Hi, I designed the database and there are two points I'm not sure that my design was correct: 1) In my search engine (in interface) i have an expression builder and user can save the expression he created. In this case don't chreate view in database, but I have a table named "Expressions" which saves expression name and expression. The reason I made it was: If I create view it doesn't make db to work faster because the select query in view runs every time when view was opened, but it makes my code more generic . But isn't it a design error?
2) I save 3 reserved fields in each table, and I don't know if I'll use them some day. The reason: adding a column to database is heavy operation. But isn't it a design error?
I have a few questions here about designing a database:
1. What is normalisation and de-norminalisation?
2. A quote:
normalisation has a series of steps (or rules) called forms the more steps you take, the more normalised your tables are......If you use the first 3 steps you would say that the tables are in their Third normal form
What is all that about - whats forms got to do with tables or what is he trying to say in the above quote?
3. When would you decide to create a new table in a database - i.e. what rules does everyone follow to say "ok i better capture this data in a new table and create a relationship to another table"
I'm new to databases but not to programming in general. I've got a few applications which currently sit on a single PC and read/update a particular XML file on the box. The applications are C# apps and use FileSystemWatchers and a mutex to keep watch for changes and update the XML file as needed. It has worked reasonable well for me.
Now, I need to run these applications on separate machines, so it seemed a good point to consider moving toward a database solution.
I'm hoping that there is a straightforward solution using SQL Server that will ensure that my applications alway have the current view of the world. I had run into instances with my existing setup where once in a while an application thought its DataSet was up to date, but wasn't.
Can someone point me in the right direction to implement the solution? I suspect that this is a really common need for lots of programs that are distributed. I'm still quite a newbie with databases and SQL Server, so I'm not even sure I'm using the right terms to describe things.
Our company is looking to move to a more robust database platform/setup, and it looks like sql 2005 + database mirroring is what we are looking for. First I have some questions about it.
Can a server that is functioning as a mirror for one database be the primary server for a seperate database? Basically think of a triangle of three sql servers, each serving as a primary server for a specific database, and using the next server in the triangle as a mirror for that specific database. To be more specific:
Server 1, Primary Database A, Mirroring Database C Server 2, Primary Database B, Mirroring Database A Server 3, Primary Database C, Mirroring Database B
If that is possible, how many witness servers would be needed to accomplish the above topology? On that note, how robust hardware wise should the witness server be?
On a completely seperate note, what method is recommended for interconnecting these servers? Is gigabit ethernet fast enough, or does it require something like fibre channel or infiniband?
The ReorderList control has driven me to desperate ends tonight. I found that it will only work if my database has a field (OrderID in this case) of type int that it can use to keep track of the order. The problem is that I'm not using the ReorderList control for inserting into the database. This requires me to keep track of the OrderID myself and I have found that simply setting the OrderID field as the "Identity" will cause it not to work.
Common sense tells me that using the Identity is the best way to keep track of a ReorderList because it automatically numbers things as ther're inserted. If something is deleted, it shouldn't matter because it will still be in order even to there's a gap in the numbering.
The only solution I can think of is trying having TWO identity fields in the database, but since that's not possible, a field that mirrors the Identity. Can anyone advise me on how to do that? The below datasource does not insert anything into the OrderID field:
I have a db in SQL server 2000 developer edition. I am using Visual Studio 2005 standard, and also VWD Express. I would like to just access the database that is in SQL server 2000 so I can get on with developing the site, but VS2005 refuses to recognize the instance. It recognizes 2005 instances right away.The services are all running, the network protocols are enabled, uid's/pw all of that is correct. I am getting the "named pipes" error (the named pipes protocol is enabled).Any suggestions? I'd really rather just work with the db as-is in SQL 2000. But I can't get it to connect. I can connect to it if I export it to SQL 2005, (on the same development machine) but can't get the stored procs over to the 2005 db. So my web app is not finding the stored procs and won't run.Do I need to uninstall SQL 2005 from this box if I want to use SQL 2000?Thanks,--Donnie
I have an ODBC 3.0 Application on Windows NT Server maintaining aconnection to a SQL Server 2000 database on the same machine. When anerror occurs, I'd like to be able to determine whether the error isserious enough that the database connection has been lost, so I canhave the application try to reconnect automatically. My understandingis that any error of severity 20 or above includes a broken connection,but I'm having difficulty retrieving the error severity through ODBC.So my first question is, how do I retrieve the error severity throughODBC?Also, as a test, I stopped the database while my application is stillrunning, and the first error I received had a native error code of 55.There is no 55 error in the sysmessages table, so I'm confused as towhat the severity of the error is. Can anyone shed some light on why Iwould be receiving an error code that is not in the sysmessages table,and where I might be able to find more information about the error?Thanks in advance,Abram
We have SQL 2005 db mirror configured with a witness server for high availability. Node 1 is the principal and Node 2 is the mirror. A nightly job creates a snapshot on Node 2. The snapshot is used for previous day reporting queries. We have now been asked to present another copy of the database for near-time reporting. I thought about possibly adding a peer-to-peer replication as part of my environment but was hoping to see what everyone else out there is doing.
I have a SQL Server 2005 database (called BDHSE) in a PC which i call PC1. I have a second PC (PC2) and both are within a network (a WLAN).
What i want is to have access to BDHSE from an application in VB6 (APP1) running in PC2. All the INSERT, DELETE, UPDATE records process is done through APP1.
APP1 ia currently running in PC1 and is to be installed on PC2.
I have these questions:
1. What do i need to install in PC2 since all the INSERT, DELETE, and UPDATE is done using APP1? I guess i only have to install the Microsoft SQL Native Client (with all the prerequisites of course) but i am not sure.
2. In the APP1 made in VB6, do i have to change the connectionstring since i am accesing the database which physically is at PC1 and the APP1 will be used in PC2?
3. Any advice you can give me on doing this will be well received.
1. Is it legal and OK to use a MSDN SQL copy on a production environment or is it strickly for test environments ??
2. If I own a legal copy of SQL 7 with 5 cals, can I legally use SQL MSDE and have more than 5 people access my SQL server or am I also limited to 5 users as my original ??
I have some tasks that I need to accomplish within T-SQL but cannot find a means to accomplish them.
They are..
1. Check for the existance of an external text file.
2. Count the number of rows in an external text file.
3. Be able to run the BCP command from within T-SQL. I am currently using the BULK INSERT command which works fine but it does not allow the following..
I am tying to call BCP to output the contents of a table to a text file from with in a stored procedure. The procedure will be called from an ASP page ... My question is were does the file get created ??? I want to create the text file on server ONE and SQL server is running on server TWO and IIS is running on server THREE... do i have to have a drive letter mapped to server ONE and if so is it mapped on the SQl server or the IIS server ....
ie: exec master..xp_cmdshell bcp db..table out h:est.out -Uxx -Pxx -Sx
I have some tasks that I need to accomplish within T-SQL but cannot find a means to accomplish them.
They are..
1. Check for the existance of an external text file.
2. Count the number of rows in an external text file.
3. Be able to run the BCP command from within T-SQL. I am currently using the BULK INSERT command which works fine but it does not allow the following..
I have two questions, 1) Could anyone please point me in the right direction concerning information pertaining to NT Server Enterprise Edition verses NT Server Workstations. We are having problems running SQL Server 7.0 and the Enterprise Edition together on the same machine and was wanting to find information about compatability issues, if there are any, 2) I, on a SQL Server 6.5 database shrunk it by 2 Gb. When I looked to see if SQL Server released those 2 Gb back to the hard drive, I was amazed that it didn't! Did I miss something or will SQL Server 6.5 not release the space because of the initial set-up. And why did SQL Server 6.5 automatically take the space from the Transaction logs when neither of the devices were specified? Is the Transaction Log the default area for shrinkage?
Thanks in Advance! Daimon Russell daimon_r@hotmail.com
1. When we create DTS in SQL Server through DTS designer, where are they stored physically? 2. What would be the best way to modify a DTS without using DTS designer? 3. Is there any other way to create DTS apart from DTS designer and Visual Basic? 4. Is there any website which has detailed information for DTS? (which has more FAQs like above?)
In our production environment, we keep changing the servers frequently, and everytime that happens, I have to change the connection properties in all the DTS going to them one by one.
I am not too familiar with SQL Server, but my supervisor gave me the task of finding out the difference between SQL Enterprise and SQL Standard. He also asked me to research the difference between processor licences and client access licences. I will use the Internet as a resource, but I would also like to hear the opinions of someone who uses these programs or is knowledgable about them. So please any suggestions or any useful links would be very helpful.
I have two questions. 1) If a database is suspect we can have that trace from sysdatabases.There is a column named status.My question is in case of suspect datatbase what will be value in the field status of sysdatabases? 2) The password of an user login(created by using sp_addlogin stored procedure or any other way) is stored in the table sysxlogins of master database.The password is stored in a varbinary format.How can I get the actual password(means in a char format)?I mean how can I convert the varbinary value to a readable format?
Hi All, I am new in SQL SERVER 2000.I have few questions - 1) WHAT WILL I DO TO TRUNCATE THE SIZE OF A TRANSACTION LOG? 2) WHAT WILL BE THE STEPS OF BUILDING THE MASTER DATABASE? 3) WHAT WOULD BE THE PLAN OF ACTION WHEN SQL DOES NOT STARTS UP? 4) WHAT WOULD BE MY PLAN OF ACTION WHEN SQL DB GETS CORUPTED OR STARTS IN A SUSPECT MODE?
Could I do periodicity backups to another computer(mediaserver) using VDI??
I mean , Could I config a Virtual Device so that I can do backups like disk or tape, I can use 'backup database ...to virtual_device='...' ' to do backup to another computer(mediaserver)? suppose that I have finished the interface of mediaserver.
If this is impossible,how can I do periodicity backups to another computer??
I have finished a program using VDI that can do backup to another computer,and I know how to do periodicity backups to disk or tape. but I am puzzled about the periodicity backup using VDI.
I am putting together a proposal for my church, the current DB software (Access) has been outgrown. One proponent of a no name brand software insists that to implement SQL could take a year and a team of programmers, is this true??
Hi Could any one tell me the answers for these questions.
1. how do we troubleshoot a datbase if it is in suspect mode.What is the reason for a database to be in suspect mode. 2. how can we move a file from C drive to D drive, so that the file location in C drive is completely moved . 3.In a particular primary file group there are many objects. How can we move some of the objects from this primary file group in to another file group. 4. can we install a sql server on a remote server so that it will not ask any inputs like domain name, authentication modes. . 5.If we want to implement clustering , can we use the virtual ip address on clustering as the ip address of our system or we have to use another ip address for clustering 6. In 2000 we have DTs package.can we run the same DTS package in 2005.
Hi Im relatively new to ASP/SQL and have been thrown into the deep end by work. Ive got courses to go on, but not for another 3-6months.
Ive got an ASP file calling a database using SQL. Once you hit the "go" button, it puts this data into an Excel file, under a new window (still showing the asp file in the address bar).
It currently shows:
1) Item numbers that end in "0" i.e. 3.10, 12.20 appear as 3.1 and 12.2 respectively in the Bill of Materials … i.e. being treated as decimals … I need them to show-up as text. ************************************************** ******************* 2) When saving the spreadsheet … it would be good to get "X" to set the default file name to: <Quote ID>_<Customer>_<Platform>_<version>.[xls|pdf] ************************************************** ******************* 3) When a spreadsheet is displayed, it is in an editable Excel format. Is it possible to lock the file automatically when its opened or password protect it? ************************************************** ******************* 4) If a spreadsheet window is open and you try and open a new one, the old one pops-up/is still there. Need to be able to close the old one and re-open a new one automatically.
If necessary i will post the code. Any takers? Thanks
I need help with a few sql questions, but you need to look at picture containing the tables and the relationships between them. How do I post or upload the picture first?
Hi all,I'd like to know if it's possible to sort twice in a same SQL query.I use SQL for retrieving Data into an Excel Spreadsheet.(Excel 2000 or XP) and to paste the queries results into an Excelspreadsheet.1. I tried to sort by date and the only way was to use the serail numberinstead of the litteral nameI tried SELECT * FROM [Sheet1$] Where [Date] <= 07/20/2003"but this does not work.I then tried SELECT * FROM [Sheet1$] Where [Date] <= 37822" and itworks.Do you know a way to use 07/20/2003?2. I need to sort my data twice, first by name and second by date. Is itpossible to sort twice in one query?Something like:"SELECT * FROM [Sheet1$] Where [Date] <= 07/20/2003 ORDER BY [NAME] ASC,ORDER BY [DATE] DESC"3. Even if the first row of my Excel sheet includes the headers, I cannot perform a query other than SELECT * FROM, for exemple, SELECT [NAME]FROM, does not work. do you know how to do that?Thanks in advance for sharing your experience,Phil*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
1. If the TempDB Database is deleted from MS-SQL Server what willhappen..?2. How to insert a not null column in an existing table withrecords..?3. If a table is deleted, what will happen for the Stored proceduresand Views, which that table reffered..?
Hi All, I was asked couple of questions yesterday and I thought I had to still learn a lot. Questions sound very normal but as for as I am concerned, don't know the answers hence this forum. Please advise. Here the questions asked to me 1) A simple insert into the table (could be from .net application or query analyzer) takes 10 minutes and times out, does not do any thing. What could be the reason and how would you identify and resolve the problem.
2) A simple select from table taking 10 minutes( assuming there are only there columns in the table,those are, id, name, description) id being identity column and has got index as well. What could be the reason and how would you identify and resolve the problem?
3) How would you change the identity column value or can we change the identity value and how?
4) How would you use the shared, update, exclusive locks in the sql statement.?
