Saving Data And Retrieving It From The Database
Sep 18, 2007
Heres my requirement from a financial analysis im doing...
I have just calculated an industry averages on financial ratios...Now i wanna upload this industry average to the system...so that I can compare it to the individual companies' averages after calculating a particular company's average; meaning i wanna be able to call the industry average of a particular ratio (eg Current Ratio) after calculating a company's corresponding ratio...Is there a code fragment i can use for this ??
Thanks in advance...
Adam
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Jan 19, 2006
Let's say a User selects a Font from a FontDialog, and the selection is assigned to a Font object.
How can I save the Font object to a SQL database, and later retrive it restored to a Font object?
Thanks in advance.
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Aug 8, 2007
Im using MS visual web developer. I have created a website and used the database they set up by using admin tools. One page requires the take the users comment and to save it into the database. I've tried a formview and connected it to the database which worked. the problem is i cannot save whatever the user types into the textbox. {insert query didnt work with this set up }INSERT INTO aspnet_Membership(Comment) VALUES ('CommentTextBox.Text') Error: cannot set userId or to null. and if i make it allow nulls its going to move on to the next column. I would appreciate some help please. Thank you in advance.
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Feb 15, 2006
Hi there,
I have a web page (Visual Studio 2005, Asp.net 2.0) that has a series of textboxes and dropdownlists on it. I want people to be able to enter their information and click submit. When they click the submit button I want their information to save to a Sql Server 2005 database. I am having a lot of trouble finding any information on this topic. If someone could give me some sample code I would really appreciate it.
Thanks
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Jun 4, 2006
Hi all,
I am working on a project on PocketPC in which it is required to reteive data from database. I have created database on simulator as .sdf file. I want to retreive data from eVC++ code. How i can do so?
thanx
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Feb 22, 2007
Hi,I'm using VS2005 and I'm trying to link the C# windows form to MSSQL.I used BindingNavigator Control to read the data. After that I addsqlcommand and sqldataadapter to send the data to the database. Mycode is thissqlDataAdapter1. InsertCommand. CommandText ="INSERT INTO SUDENT (" +"S_ID, S_NAME, S_ADDRESS, S_PHONE" +") VALUES ('" +S_IDComboBox. Text + "', '" +S_NAMETextBox. Text + "', '" +S_ADDRESSTextBox. Text + "', '" +S_PHONETextBox. Text + "')";sqlDataAdapter1. InsertCommand. ExecuteNonQuery( );It gave me this error"NulleferenceExcept ion was Unhandled"and " Object refrence not set toan instance of an object" so I add this linesqlCommand1 = ("INSERT INTO STUDENT (S_ID,S_NAME, S_ADDRESS, S_PHONE)VALUES (@S_ID,@S_NAME, @S_ADDRESS, @S_PHONE) " ,sqlConnection1) ;Then it gave me some stupid error. By the way it didn't make a newobject of SqlCommand although I tired ....So can u help me to solve my problem ? Thank you
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Feb 22, 2007
Hi,
I€™m using VS2005 and I€™m trying to link the C# windows form to MSSQL. I used BindingNavigator Control to read the data. After that I add sqlcommand and sqldataadapter to send the data to the database. My code is this
sqlDataAdapter1.InsertCommand.CommandText =
"INSERT INTO SUDENT (" +
"S_ID, S_NAME, S_ADDRESS, S_PHONE" +
") VALUES ('" +
S_IDComboBox.Text + "', '" +
S_NAMETextBox.Text + "', '" +
S_ADDRESSTextBox.Text + "', '" +
S_PHONETextBox.Text + "')";
sqlDataAdapter1.InsertCommand.ExecuteNonQuery();
It gave me this error
€œNulleferenceException was Unhandled€?and €œ Object refrence not set to an instance of an object€? so I add this line
sqlCommand1 = ("INSERT INTO STUDENT (S_ID,S_NAME,S_ADDRESS,S_PHONE) VALUES (@S_ID,@S_NAME,@S_ADDRESS,@S_PHONE)" ,sqlConnection1);
Then it gave me some stupid error. By the way it didn€™t make a new object of SqlCommand although I tried €¦.
So can u help me to solve my problem ? Thank you
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Nov 2, 2007
Hi,
I am designing a site using Visual Web Developer, CSharp and Sql server Express.
One the contact page I want to put a form that allows users to enter details about
themselves. On clicking the button this will be stored in the database under a table
called subscribers. The form will have, name, address, telephone, email fields etc.
With the email addresses from the visitors I want to be able to keep them in
a newsletter section or similar which is automated so they recevie emails from time to time
Could somebody suggest a tutorial which shows how to complete this process
using c sharp and sql.
Thanks for you time
Prontonet
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Dec 30, 2004
Hello everyone,
I am trying to find some code or documentation that I can use to create a web page that will save data from an excel file to a mssql database
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Jul 18, 2014
I have a drop down menu for transmission. Inside the drop down menu, there are 1.Any 2.Auto 3.Manual options
Now I want to retrieve from my database, if the client select '1.Any' option. Meaning the output I want it to display all the products which have both auto and manual for transmission.
I have no problem retrieving all the products which either only have auto option or manual option.
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Aug 8, 2006
I'm connecting to a SQL Server 2005 database using the latest (beta) sql server driver (Microsoft SQL Server 2005 JDBC Driver 1.1 CTP June 2006) from within Java (Rational Application Developer).
The table in SQL Server database has collation Latin1_General_CI_AS and one of the columns is a NVARCHAR with collation Indic_General_90_CI_AS. This should be a Unicode only collation. However when storing for instance the following String:
‚¬_£_ÙÚÜÛùúüû_ÅÆØåæøߣÇçÑñ_¼½¾_ЎўЄєÒ?Ò‘_прÑ?туф_ЂЉЊЋ
... it is saved with ? for all unicode characters as follows (when looking in the database):
‚¬_£_ÙÚÜÛùúüû_ÅÆØåæøߣÇçÑñ_¼½¾_??????_??????_????
The above is not correct, since all unicode characters should still be visible. When inserting the same string directly into the sql server database (without using Java) the result is ok.
Also when trying to retrieve the results again it complains about the following error within Java:
Codepage 0 is not supported by the Java environment.
Hopefully somebody has an answer for this problem. When I alter the collation of the NVARCHAR column to be Latin1_General_CI_AS as well, the data can be stored and retrieved however then of course the unicode specific characters are lost and results into ? So in that case the output is as described above (ie ‚¬_£_ÙÚÜÛùúüû_ÅÆØåæøߣÇçÑñ_¼½¾_??????_??????_????)
We would like to be able to persist and retrieve unicode characters in a SQL Server database using the correct JDBC Driver. We achieved this result already with an Oracle UTF8 database. But we need to be compliant with a SQL Server database as well. Please help.
Thanks in advance for your help.
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Nov 24, 2006
Hi, all here,
Thank you very much for your kind attention.
I am wondering if it is possible to use SSIS to sample data set to training set and test set directly to my data mining models without saving them somewhere as occupying too much space? Really need guidance for that.
Thank you very much in advance for any help.
With best regards,
Yours sincerely,
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Feb 12, 2008
Hello,
I am wondering what conversion rules apply, when a string, which contains a number, is saved to a SQL Server 2005 into a column of type decimal.
This is the code I€™m using (C++):
CString cValue = "0.75"
_variant_t vtFieldValue;
vtFieldValue = _variant_t(cValue)
pRecordSet->Fields->Item["MyColumn"]->Value = vtFieldValue;
"pRecordSet" is an ADO recordset. The database column "MyColumn" is of type "decimal(19,10)".
The most important question for me is, if the regional settings of the database server or the regional settings of the client PC are considered during the conversion from the string to the decimal value. For example in standard French regional settings the "." would not be recognized as decimal separator.
I am also wondering if the language of the database instance, in which this data is saved, is considered during this conversion or any other settings of this database instance.
So my general question is: Does anybody know exactly what rules apply during the above mentioned conversion?
Thank you for your help.
Regards,
Volker
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Dec 13, 2007
Hi Guys,
I am trying to automate a basic task using SQL Server 2005 Express.
Currently I have a query script that I run and then save the results as a CSV file. I need to do this on a daily basis and so I am looking to find out how best to go about this. There are a multitude of third party tools that claim to be able to do this - can anyone recommend this or enlighten me of the best way to set up this automation.
All ideas gratefully received!
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Sep 12, 2007
Hey Guys need your help please!
we are now on our second week back log...
database file is not full and not limited to growth. As a matter of fact batch transactions are done but our proble is very slow. 28 records has been successfully save after 45 mins. Before it's just 5 minutes. Then some other process are not working. Is there anything that I must do? We have 460 tables in our software using SQL server 2000 and our application is using VB 6.0
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Apr 10, 2006
Hello,I use SQL Server 2005 Express and I would liketo save on db of mine...Have I only to save the .mdf and .ldf data fileor I need to stop some service or other programs?Can I use some utility to schedule this?ThanksM.
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Oct 25, 2006
My install of SQL Server 2005 runs like a dog. The SQL Management Studio splash screen lasts for 10 minutes, then when the Studio window appears it takes another 5 minutes to initialize.
I have SQL server installed on a Germane Server running Windows Server 2K, SP4. It has quad Xeon 2.8 GHz processors with 2GB RAM. 4 300GB drives in a RAID 5 configuration.
I have created 2 databases which I would like to save, uninstall SQL, then reinstall it. (I didn't install it the first time.)
Then load the 2 databases into the new install.
How do I do this?
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Jan 20, 2008
Hi.
I am new to SQL Server management.
I created a new database and also a table names customer. Saved my works.
Want ot know where the SQL database file has been saved because i cant find in the the sql server management folder located in my documents.
Also i tried to connect to that database from vb 2008 but in vain. i just cant see the database.
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Sep 24, 2007
I am now retrieving the PDF from the database and I am getting an error:
Error 1 'GetImages.GetImage(int)': not all code paths return a value
I have:
int imageid = Convert.ToInt32(Request.QueryString["ACTUAL_IMAGE_PDF"]);
And...
private SqlDataReader GetImage(int imageid)
{
Sql Statement...
}
Could someone help please??
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Jun 15, 2004
Hi
I've got a module that contains the following function.
Imports System.Data.SqlClient
Module SQL_Sprocs
Function ListUsers()
Dim conn As New SqlConnection(System.Configuration.ConfigurationSettings.AppSettings("DBConn"))
Dim cmd As SqlCommand = New SqlCommand("list_users", conn)
cmd.CommandType = CommandType.StoredProcedure
conn.Open()
Dim dr As SqlDataReader
dr = cmd.ExecuteReader
ListUsers = dr
dr.Close()
conn.Close()
End Function
End Module
I then want to call this function from my webform. So I'm using the following
Dim dr As SqlClient.SqlDataReader
dr = Timetracker.SQLProcs.ListUsers()
Do While dr.Read
Label1.Text &= dr("first_name") & " " & dr("last_name") & ", "
Loop
dr.Close()
But it's not working. I want to have a module that contains all my sprocs and be able to call them from the individual webpages.
What am I doing wrong?
Lbob
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Dec 21, 2006
Faculty member writes:
"I meant to delete just one assignment, doing which was giving me difficulty.
I deleted a whole category by accident which had most of my daily grades in it for a course with quite a few of them. I was negligent in backing them up, so I cannot restore them. I have an XLS file from the midterm, but am missing about 6 grades after that.
Is there any way to recover the grades I had in the deleted category. It has been a couple of days since I entered any new grades. HELP!"
My current backup strategy is to do a full backup 5 pm, differentials every 2 hours, logs every 30 min, all so they arenot simultaneous. Backing these all to same backup device via three different jobs.
Then the server is backed up to tape shortly after the 5 pm full backup.
Obviously, I can't restore from the backup for this situation because it would hurt other data.
But - is there a way I can take last night's backup from tape and restore it to a different database than our production database? (Such a database doesn't at this time exist. Would I detach, copy over the files, and then reattach on prod and attach on the devl side, and then restore from the backup device to the devl copy?)
I've never had to perform this kind of rescue and am wondering if my backup strategy is flawed since it isn't immediately evident how I can easily do this.
I needed a similar thing from our Oracle DBA yesterday, and he went to tape, copied out a table and put it on the Oracle database under a different owner, and I easily fixed the few records that I had botched.
That's exactly what I need to do now with MS SQL 2000.
As the faculty dude said, "HELP!"
And Thanks.
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Oct 26, 2005
Hi,
I was hoping someone would be able to help me, I trying to go through several databases, 111 to be exact, and get the data out of a particular table which is present in all the databases on the same server.
I know how to get the names of the databases from the INFORMATION_SCHEMA, but how can use the name for it to cycle through all the databases and get data out of the one particular table.
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Apr 23, 2007
Hi, I need some help. I have this query where i need to pull up students that have more than or equal to 3 absences in a row. Now I am getting all those students that are absent but not in a row. But i was wondering if there is a way to tell if a student was absent three days in a row . There is a date field that is being used to identify the day of the class and a status field that identifies if the student was absent or present. Please help someone.
Birju
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Jun 26, 2006
Dear fellows,
Up to the moment I've got enough knowledge for read data stored into .LDF files by dbcc log and so on. It's very useful and interesting. Now, I wonder how to retrieve the same information but on MDF files.
At first, I want to make sure that is not possible by mean of traditional methods (dbcc or something like that) I suppose so but I'd like to hear opinions regarding that.
Thanks in advance for any idea, though or further information.
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Apr 17, 2007
I have 3 strings delimitted by a * character that I would like to save to a database. Each string will always have the same number of elements.
strUserID = "1*2*3"
strCompanyID="12931*12937*12945"
strCompanyName="International Business Machines, Inc*Ford Motor Company*Delta Airlines"
What I need to do is to save each record like this
INSERT INTO tableA (UserID, CompanyID, CompanyName) VALUES (1, 12931, 'International Business Machines, Inc')
INSERT INTO tableA (UserID, CompanyID, CompanyName) VALUES (2, 12937, 'Ford Motor Company')
INSERT INTO tableA (UserID, CompanyID, CompanyName) VALUES (3, 12945, 'Delta Airlines')
I've done something like this before with a single string, but don't know how to handle 3 of them.
Dim strAlerts As String() = NothingstrAlerts = values.Split(",")Dim s As String For Each s In strAlerts SqlText = "INSERT INTO tableA (UserID, CompanyID, CompanyName) VALUES (" & lblUserID.Text & ", '" & lblCompanyID.Text & "','" & s & "')" cmd = New SqlCommand(SqlText, strSQLConn) cmd.ExecuteNonQuery() Next s
Thanks for any help
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May 11, 2007
has anyone got any opinions on the pros/cons of storing mp3 files in the database instead of the file system ?
How could this be done ? Would it be a binary data type ?
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Feb 6, 2008
hi
I have two questions:
1. I want a code to save data typed in a textbox during runtime using SQL server database. The database has a table with several colums where i have to reference the necessary column.
2. Can i use a Gridview to enter data during runtime and save the same data to the database? that is, INSERTING data to the database.
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Dec 1, 2005
I'm looking for information that could tell me how to saving picture in a SQL database. The site is build on asp.net 2.0 and c#, and I'm using Visual Web Developer 2005 Express Edition. I would be thankful for some help.
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May 19, 2008
I'm using vs2008 programming in the latest vb.net and am pretty new to sql server. I looked up tuts and such to save changes to databases after I understood on how to connect to them get them to display and such. This is my code when I hit the "Save" button. It worked last time I was working on the program, now it doesn't, when I load up the program sometimes (i'm not sure why or under what circumstances) it'll load up the changes I made to the database through the datagrid and saved, but others it won't. What am I doing wrong? Here's my code:
Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Try
Me.Validate()
Me.FinancialBindingSource.EndEdit()
Me.FinancialTableAdapter.Update(Me.myDataSet.Financial)
Catch ex As Exception
MsgBox("Update failed")
End Try
End Sub
edit: It saves, but not completely. By that I mean, it'll save, but i'm not sure if it actually saves to the database or not. It will load back up with the data that I modified fine..unless I change any code in the program. Even if I just add a comment, the data reloads with the original data. However, if I don't touch code, it'll save my data fine. Why does it do this?
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Jul 20, 2005
I have an application that connects and edits a database's tables.My question is, what is the best way to save who did what changes tothis database? I need to be able to display this in the application.The best way I have thought of so far is, to create a new table with'user', 'date', 'table_name', 'primary_key', 'old field_value' and'new_field_value' fields. Then I can save which table row had beenchanged, by which user and on which date.I'm sure that there is a way to do this in SQL Server, but I'm notsure how.Any help would be appriciated.Jagdip
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Oct 24, 2006
Using: Compact Framework 1.0 and SQL Server CE 2.0
i want to save an image to my sql server ce 2.0 database on the device.
In the Compact Framework 1.0 the Image class does not have .FromStream method, and the PictureBox class does not .Save method.
Has anyone done this before in SQL CE 2.0 and CF1.0
Thanks
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Nov 11, 2006
Hello,
My english is not the best, but i will try my best.
I want to change the saving folder for the database from my systempartition to my datapartition (from c:labla to d:mydata), but i dont know how. I can see the folder but it is in gray font and unchangeable.
Greetings Thomas
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May 4, 2007
Hi,There are 3 tablesTable,TableDetails,TableDaily.With structureTABLE:TableID UserID Money---------- ---------- ----------(int) (int) (money)TABLEDETAILS:TableDetailsID TableID ItemID PaidForItem DayID---------- ---------- ---------- ---------- ----------(int) (int) (int) (money) (int)TABLEDAILY:TableDailyID TableID PaidForItem Money Total Change---------- ---------- ---------- ---------- ---------- ----------(int) (int) (money) (money) (PaidForItem + Money) (money)"Table" holds id for user and his money amount, which changes during time. "TableDetails" holds data about items user bought, amount paid for them and dayid which relates to one particular day."TableDaily" holds history. I do not know how to update this table.I created job whish runs stored procedure. This procedure sums "PaidForItem" using group by TableID and WHERE DAYID = '11'.Problem is with Change column. This column sould hold difference between today's Total and previous one etc.Current procedure looks like this:INSERT INTO TableDaily (TableID, PaidForItem, Money, DayID)SELECT TableDetails.TableID, SUM(PaidForItem) AS PaidForItem, Table.Money, (SELECT DayID FROM Days WHERE (Aktive = 1)) AS DayIDFROM TableDetails INNER JOIN Table ON TableDetails.TableID = Table.TableID GROUP BY TableDetails.TableID, Table.Money
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