Hi,
I have a table which I need to store times in. What is the best way of doing this? The only way I can think of so far is to save the times as a datetime such as '1/1/1900 03:00 PM' then format the date as "hh:mm tt" so that the day isn't displayed. Is this the best method?
Thanks,
Curt.
Let's say you had a User table and one of the fields was called Deceased. It's a simple closed-ended question, so a bit value could be used to satisfy the field, if the person is dead or alive. Let's say another field is called EyeColor. A person can have only one eye color and thus one answer should be stored in this value, so this is easy as well.
Now, let's say I want to store all the languages that a specific user can speak. This isn't as easy as the previous examples since it's not a yes or no or a single-value answer. I haven't had much experience with working with databases so I've come up with two possible ways with my crude knowledge hehe.
In terms of inputting the multi-answer values, I suppose I could use a multiple-selection listbox, cascading dropdowns, etc. Now, here are the 2 solutions that came to mind.....
1) Make a field called LanguagesSpoken in the User table. When I process the selections the user makes on the languages he knows, I can then insert into the LanguagesSpoken field a string "English, Spanish, Czech" or IDs corresponding to the languages like "1, 5, 12" (these IDs would be referenced from a separate table I guess). I would use commas so that later on, when I need to display a user's profile and show the user's languages, I can retrieve that long string from the LanguagesSpoken field, and parse the languages with the commas I've used. Using commas would just be a convention I use so I would know how to parse (I could have used "." or "|" or anything else I guess) the data.
2) Forget about the LanguagesSpoken field in the User table altogether, and just make a LanguagesSpoken table. A simple implementation would have 3 fields (primary key, userId, languageId). A row would associate a user with a language. So I would issue a query like "SELECT * FROM LanguagesSpoken WHERE userId=5" (where userId=5 is some user). Using this method would free me from having to store a string with delimited values into the User table and then to parse data when I need them. However, I'm not sure how efficient this method would be if the LanguagesSpoken table grows really large since the userIds would NOT be contiguous, the search might take a long time. I guess I would index the userId field in the LanguagesSpoken table for quicker access?
OR, I may be going about this the wrong way and I'm way out on left field with these 2 solutions. Is there a better way other than those 2 methods?
I haven't work extensively with databases and I'm just familiar with the basics. I'm just trying to find out the best-practice implementation for this type of situation. I'm sure in the real world, situations like this is very common and I wonder how the professionals code this.
Thanks in advance.
I need a way of being able to store any rows that are deleted from any of 15 tables.
My current thinking is to have one 'Deleted_Records' table with lots of varchar fields (enough to cater for the largest of the 15 tables) and just adding some SQL to the delete triggers of the 15 tables to write a deleted record(s) into it.
I am not anticipating having to read from this table much. Only in case of emergencies i.e. a user makes a bad mistake and deletes accidentally.
Am using SQL7.
Obviously with cascading deletes quite a few records could be deleted in one delete as it were.
I there a better way of handling this scenario ?
many thanks
Paul
Hello there,I just want to ask if storing data in dbase is much better than storing it in the file system? Because for one, i am currenlty developing my thesis which uploads a blob.doc file to a web server (currently i'm using the localhost of ASP.NET) then retrieves it from the local hostAlso i want to know if im right at this, the localhost of ASP.NET is the same as the one of a natural web server on the net? Because i'm just thinking of uploading and downloading the files from a web server. Although our thesis defense didn't require us to really upload it on the net, we were advised to use a localhost on our PC's. I'll be just using my local server Is it ok to just use a web server for storing files than a database?
View 6 Replies View Relatedhow can i store time in my table
1 hr:55 mins:22 secs
Is there a way to store a time in the SQLServer database, without the date? (e.g. just simply "HH:MM" instead of "HH:MM DD/MM/YYYY" which it stores it in)
View 1 Replies View Relatedhi,
i would like to store just the time part in sqlserver 2000. time part with default date which is 1899 - 12- 30 in my sql server. but i read some articles which mentioned default date as 1900 - 01 - 01. i am not sure which one but if i enter just the time part in my sql server and do the query i get 1899 -12-30 and (time part). anyway, i am just wondering whether it is possible to set the trigger or constraints to strip off the date part of entered value and replacing it with default is ok.
the reason is i need to some queries on time part only which is giving some problem now.
i've got an excel spreadsheet generated everyday which stores the duration of talk time as 0:02:09
When i use the Integration Services Package to move the data into a table. I've used datetime column. It comes up as 1899-12-30 00:00:02:09.000
What's best practice to store duration as in a SQL Server table? or should i convert it to seconds.
Hello all,
Perhaps someone out there could enlighten me on the issue of date/time (particularly time) storage.
I am trying to get the time component to be stored in a Datetime field. I can do a Date only as follows:
INSERT INTO Test ([DateTime])VALUES(Cast(convert(char(10),GETDATE(),102) as Datetime))
I attempted the following:
INSERT INTO Test ([DateTime])VALUES(Cast(convert(char(8),GETDATE(),108) as Datetime))
But I cannot get the time component without the default date 1/1/1900 component.
If any of you gurus out there can help me out it would be very much appreciated.
Thanks!
HI there,I currently store the date using the getdate() functionbut how can I store just the time or seperate the time off from adatetime datatype?M3ckon*** Sent via Devdex http://www.devdex.com ***Don't just participate in USENET...get rewarded for it!
View 4 Replies View RelatedHi to you all and specially to who will solve my problem!
That is what I want:
I need a database that will serve as an archive db in read-only for day-to-day queries
and a production db that will be kept small by deleting un-needed records
A replication setup would be fine but I didn't find a way to avoid the deletes to keep the production database small, to replicate in the archive database where transaction are replicated.
Is there someting i am missing?
Andre Vigneau
Hi all,
I'm wondering what is the best way to store time-series data in an SQL database?? I've done a bit of investigating on the rrdtool (round robin database tool) that is used in a lot of nix based solutions for monitoring network equipment. I have a need to collect performance data from servers and routers and then produces some nice graphs from that data. I'm just not sure who i should store that data without the database growing to some huge size.
Any suggestions?
I have a system that basically stores a database within a database (I'msure lots have you have done this before in some form or another).At the end of the day, I'm storing the actual data generically in acolumn of type nvarchar(4000), but I want to add support for unlimitedtext. I want to do this in a smart fashion. Right now I am leaningtowards putting 2 nullable Value fields:ValueLong ntext nullableValueShort nvarchar(4000) nullableand dynamically storing the info in one or the other depending on thesize. ASP.NET does this exact very thing in it's Session State model;look at the ASPStateTempSessions table. This table has both aSessionItemShort of type varbinary (7000) and a SessionItemLong of typeImage.My question is, is it better to user varbinary (7000) and Image? I'mthinking maybe I should go down this path, simply because ASP.NET does,but I don't really know why. Does anyone know what would be the benifitof using varbinary and Image datatypes? If it's just to allow saving ofbinary data, then I don't really need that right now (and I don't thinkASP.NET does either). Are there any other reasons?thanks,dave
View 7 Replies View RelatedHi-I have a sql server database, and am wring web apps to access it.I've created databases different ways, and ended up with different owners (eg dbo, nt authorityetwork services...)I also have connection strings using windows authentication, and some using a user name and password.I have read that using windows authentication is the best way to go, as far as security goes, but I have noticed some connectivity issues when I upload the site to the server, and test it remotely. What is the safest 'owner' of the database, and what's the safest way to connect?Thanks Dan
View 8 Replies View RelatedHi,I am trying to write a method which needs to call a stored procedure and then needs to get the response of the stored procedure back to the variable i declared in the method. private string GetFromCode(string strWebVersionFromCode, string strWebVersionString) { //call stored procedure } strWebVersionFromCode = GetFromCode(strFromCode, "web_version"); // is the var which will store the response.how should I do this?Please assist.
View 3 Replies View Relatedbest way to store questionnaire data in a database.Since different questionnairs have different questions and formats i.e dropdown, radio, checkboxes etc building such a database model becomes highly complex.
I've read that if data schema is complex and higly variable it may be better to use an xml document and store that in a databse. However I dont quite understand how you store xml to a database. Do you simply store the entire structure in something like a nvarchar column or is there some other way to store xml to a database.
If you store the entire structure to the databse then how do you query the content to generate reports.
example xml:
Code:
<survey>
<meta>
<id>sample</id>
</meta>
<questions>
<question id="1" type="singlechoice" page="1">
[code]...
Hi,
I just have a Dataset with my tables and thats it
I have a grid view with several datas on it
no problem to get the data or insert but as soon as I try to delete or update some records the local machine through the same error
Unable to find nongeneric method...
I've try to create an Update query into my table adapters but still not working with this one
Also, try to remove the original_{0} and got the same error...
Please help if anyone has a solution
Thanks
Does anyone currently do this. I want to store an audit history for changes made in the database through our web application.
I would like some kind of history table structure. I would be interested to see if anyone else has done this and what your structure looks like.
ScAndal
I have a bit of a dilema, that maybe someone can give a reccomendation on. I have a vb app that will calculate a duration that a process runs in hours:minutes:seconds. My question is should I store this in the database as a date/time field or calculate total seconds and store it as an integer field? I will be using this field for basic summing calculations in the future. Thanks for any help.
View 1 Replies View RelatedHello-
Im currently storing an account id in a sql table. Is there any column data type that would presere the numbers but make it appear as a series of letters and nmumbers when someone looks at the database table?
If not can someone give me a strategy
thx
Hi,
can we keep a file like word file or html file in the sql server database?
if yes, then can we search any thing in these stored file?
regards
mihir
How do you store an image in a database? I know this is not the preferred method for storing images but would like to know anyways…thanks.
View 1 Replies View Relatedhello ... i have a project this semester and i had to study is storing images in a database ( using Microsoft Access ) is good or bad ? so any one could tell me the advantages and the disadvantages please ...
thanks
bye
An odd question from me, I know, but this time, I assure you a twist.
I have a group that wants to store images in either a database or a file share, in order to make a certain website able to run on a load balanced web farm. These images are around 1KB each in size, and have a lifespan of exactly one use (think of graphs). I went a-googling, and found no shortage of articles that say "don't do it, but here's how you can do it", but I did not find any real hard statements as to why to not do it. Needless to say, this is hurting the case for not putting these images in the database. I have found an article that says images over 8KB will have worse performance, but I can not use that factoid here. For the moment, I have the developers leaning toward the fileshare, because they will be writing transaction logs all day, which will be more work than the fileshare needs to do....I think. The best I can do, is cut the text/image datatype overhead, and have them create the table as varbinary(2000), but even then, I don't like the look of the idea.
Anyone out there have good articles/whitepapers that detail the differences between writing single-use images to a fileshare vs. a SQL database? <baiting=blatant>Failing that, do any of the Microsoft development team have an opinion?</baiting>
Alternatively, what is the general opinion of keeping session state information in a database (because I bet that will be my next battle). I see .NET includes a session state server, but not being a programmer, I can not create an opbjective test.
Hy, could someone help me in this:In design mode, i want to put pictures in database. I made column namedpics, and its type as image. How can I put pictures or some address of thesepictures in that column, or i maybe need to put pictures in Add_Data folderand make reference from there, or what I need to do?could someone explain me that process of putting at least one picture indatabase, I'm using Microsoft SQL Server 2005thanks everyone
View 4 Replies View Relatedhi,I would like to store windows passwords and usernames in database.Please tell me where to start?What database can I use?Can I use free microsoft database?ThanksBart
View 6 Replies View Related
Hey I currently have a foreach loop container working which scans a folder, loops through the files in this folder and then moves them to a new folder.
At the same time I also do an SQL insert into a table logging the details of the transfer.
What I would like to do next is to store the actual PDF in binary in my DB (varbinary format). How would I go about this ?
i use a teltonika t-modem gsm modem..
it's quite new actually and it is connected to my PC thru a usb port..
my problem now is that
i can,t seem to get the hang in storing received messages in
my SQL database..
the code goes like this..
a receive button is clicked to generate an instance
where all SMS sent to my sim card would then be accessed by my gsm modem..
private void btnReceive_Click(object sender, EventArgs e)
{
ListViewItem Component;
Cursor c = Cursor.Current;
Cursor.Current = Cursors.WaitCursor;
listView1.Items.Clear();
btnReceive.Enabled = false;
objGsmIn.Device = cmbDevice.SelectedItem.ToString();
objGsmIn.LogFile = txtLogging.Text;
if (cmbDeviceSpeed.SelectedIndex == 0)
{
objGsmIn.DeviceSpeed = 0;
}
else
{
objGsmIn.DeviceSpeed = System.Int32.Parse(cmbDeviceSpeed.Text);
}
objGsmIn.Storage = fMsgStore.MsgStorage;
if (fMsgStore.DelMsg == true)
{//deletes your message after receiving
objGsmIn.DeleteAfterReceive = 1;
}
objGsmIn.Receive(); //this checks your new incoming messages
if (objGsmIn.LastError == 0)
{
objGsmIn.GetFirstMessage();
while (objGsmIn.LastError == 0)
{
//continously receive all messages..
Component = listView1.Items.Add(objGsmIn.MessageSender);
Component.SubItems.Add(objGsmIn.MessageData);
objGsmIn.GetNextMessage();
}
txtResults.Text = "Messages Successfully Received..";
}
else
{
//error in message receiving process..
txtResults.Text = "Error " + objGsmIn.LastError + "(" + objGsmIn.GetErrorDescription(objGsmIn.LastError) + ")";
}
btnReceive.Enabled = true;
Cursor.Current = c;
}
now my problem is that i cant figure out where i would place my stored procedure
in storing those messages to my database..
the problem is that..
if i place my stored procedure on the 1st "IF" statement..
it will only save my 1st incoming message..
but another thing is that if i put it under my "WHILE" statement..
dont you think that it will continiously loop?
meaning to say that the next tym i tried to access all my received messages
it would definitely store all the previously read messages again to my database..
which then creates multiple copies of my previously stored messages again and again
well i hope you get the gist of what i mean..
its quite complicated to explain..
but then again thanks a lot for taking notice on my post regarding this..
thanks!!^_^
another thing..i used the active xperts c# application in order to
create this application..
How can I store the big files in the SQL Database, like MP3 files or an image or an video file?
View 3 Replies View Related
Can I know answer of this question ? in detail explanation.
Lets assume database A is production, B is copy. SQL Server 2005 sp2, SQL CE 3.5
Database A has a variety of transactions against it 24x7
Database B (the copy) is for reporting and as a source of merge replication for SQL CE instances
Merge replication and reporting is used 24x7 as well
I have the following requirements:
Maintain an up to date copy of the production database (need not be up to the minute, could be hourly, even daily update)
Database B is read-only. The merge replication is NOT bi-directional.
Here is the caveat (which I think prohibits using some solutions to this problem):
The production application accomplishes much of it's functionality with in-memory copies of records. I have no control over the production application. When it works against the database, it sort of does a 'withdrawal-deposit' scenario. (to the best of my knowledge it's not using SQL Server transactions) So, for every record it works with, a copy is made out of the database, changes are made in memory, a delete of the database record is done, then the record is re-inserted.
With this kind of behavior in db A, I'm not sure what it would do to log-shipping or transactional replication. I do know that I want to minimize the changes required at the SQL CE instances to keep the sync operation to a minimal cost.
Any suggestions?
I need to do a time test for restoring an Azure SQL database from a point in time. Can I automate this through PowerShell.
View 3 Replies View Relatedhi friends,
i want to show images in repeater control dynamically.
i want to store the image url in database
like i have stored the images on onefolder c:images this will contain images
how can i store and use the urls in database
or atleast how can i show the images from the folder dynamically
please help me out