Sql Statement That Can Enable To Retrieve Data?
Mar 11, 2010
am developing software using sql database. i want an sql statement that can enable me retrieve data which for example has same surname,save them in an array or dataset and navigate through them.
View 1 Replies
ADVERTISEMENT
Apr 21, 2010
I had tried to use SQL statement to retrieve data record from SQL server, but when the database grow, the query speed getting slower. I just want to get most recent 5 records, any way to make it fast? Below is the SQL
SELECT Top (5) EventNumber, IP, DateTime, DateTimeStamp, EsdMaxLog, EsdMaxLin, EsdMaxAbs, EsdCntAll, EsdCntLast, SvMax, SvCurrent, EsdLimLog, EsdLimLin,
EsdLimAbs, Distance, SvRange, CdmFilter
[code]....
View 1 Replies
Jan 29, 2010
I am using the following Select Statement to retrive data from my .csv file database:
Code:
Dim comm As New OleDb.OleDbCommand("Select *, Left([Street Full Address], IIF(InStr(12,[Street Full Address],'-')>0, InStr([Street Full Address],'-')-1, Len([Street Full Address]))) as StreetFullAddress From " &
[Code].....
View 4 Replies
Nov 26, 2010
I am trying to create a LINQ query statement that retrieve intersecting data from 3 datatables (dt, dt1, dt2). My first attempt to do so with the following LINQ query statement was successful: [code] However in my design, I would need the LINQ query statement to be dynamically generated, because I want a user to be able to retrieve intersecting data entries from VARIABLE number of datatables. In this case, the first option is not as good as the "INTERSECT" query operator, with which I can just easily connect each SQL query statement with a "INTERSECT" operator. The problem is that my second attempt using the "intersect" operator fails, and after many trials and errors I still can't get it to work. [code]
View 5 Replies
Sep 3, 2010
I am trying to retrieve information from one row that has four columns(name,company,address,phone) so that once it is displayed in 4 different textboxes, I can transfer to a word document.
View 2 Replies
May 11, 2009
I am using the following SQL statement to retrieve information from an access 2003 database but this command keeps stripping out the proceeding 0 from the number of the month. The variable is called TBookingsDateFulldate
Dim sqlQuery As String = String.Format("SELECT [ID], [Date], [Zone], [Year], [Subject], [Teacher], [LessionID]" & _
" FROM tblBookings" & _
" WHERE (((tblBookings.[Date])={0})" & _
" AND ((tblBookings.[Zone])='{1}')" & _
" AND ((tblBookings.[Active])=0)" & _
" AND ((tblBookings.[LessionID])='{2}'));", TBookingsDateFull, TBookingZone, TBookingsTimes(B, 0))
View 1 Replies
Apr 27, 2011
I am using a not equal operator <> in my sql statement but it doesn't retrieve any record which is not equal to the selected date.
CODE:
Command = New SqlCommand("SELECT * FROM [Products] WHERE [ParkingStartDate] <> @StartDate", myConn)
Command.Parameters.AddWithValue("@StartDate", StartDate1)
View 4 Replies
Jan 28, 2010
I have an enum set with custom attributes. need to retrieve the attribute value in single statement ...
Public Enum Messages
''' <summary>
''' <value>(MessageText : Do you want to save ?)</value>
''' </summary>
<StringValue("Do you want to save ?")> Save
[Code] .....
Now I needed to retrieve the enum value like something below.
Messages.Save.GetType().GetCustomAttributes...... something is possible in single statement itself?
View 1 Replies
Jun 19, 2009
I want to allow the user to enable or disable a textbox by clicking either a button (enable) or the reverse. (disable) if the user clicks the enable button the textbox should receive the focus.
View 4 Replies
Apr 23, 2011
How can I enable the encryption of an WCF (Windows Communication Foundation) Service with VB.NET? Is it enough to add a certificate to a service an set <security mode=""> to "TransportWithMessageCredential"? Or is there any other settings needed?
[Code]...
View 1 Replies
Jan 27, 2012
I am using visual studio 2010, service-based database. I created a simple table and created an edit form for that table. But when I save a row and then clear the text of a textbox (which holds a decimal value), it simply does not let me tab off the text box or save it. I put a ErrorProvider to see whats going on. It says "Input string was not in correct format". But I allowed this column to be null in my table. So how do I fix this error. And by the way, it does not happen for all text boxes.
View 3 Replies
Apr 9, 2010
I have three tables in SQL server which I would like to show and access on a form. Table 1 contains account data, address, contact details etc. Table two contains data attached to a Person, tel no , Mobile no, Email etc. Table three contains details on what awards the person holds, i.e. one person can hold several awards.
Therefore I have a one many relationship between the first two tables and a one many relationship between the second two tables. This is set up in SQL
The first two tables are shown on a form, table 1 via a set of text boxes, table 2 via a datagrid control.
I would like the functionality whereby I could select a row in the datagrid showing the persons name and find the Persons_ID number then use that as a filter to a second datagrid view so that only the selected persons awards show in the datagrid.
View 2 Replies
Apr 11, 2011
i want 2 select data from data gridview and want retrive that data into another form in to the textbox ...is it possible ? i 'm doing like this for that
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.[code...]
View 2 Replies
Feb 16, 2012
I 'd like to enable the user to apply a custom filter to a System.Data.DataTable.At the moment I have a very simple function like this:
Dim result = dataTable.Select(txtUserInput.Text)
With the filtered results I'd like to do further operations(e.g. Database Update/Delete).Is an sql injection protection needed or is the "Select" function secure?
//Edit:Can the "select" function be abused to manipulate any data in the datatable, execute code, ...? If the only danger is that this function can return to much/to less data there is no problem. But if the data in the dataset gets corrupted it's a real problem.
View 3 Replies
Apr 26, 2010
I have managed to format a text box to be formatted to two decimal places, and to only accept numbers.Only problem is i need to allow the backspace so that if someone types something wrong, they can backspace and type the correct number
Private Sub txtCAmount_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtCAmount.KeyPress
'Allow only numberical input plus decimal.
Dim allowedChars As String = "0123456789."
[code]....
View 7 Replies
Mar 11, 2010
I want to obtain the individual data in rows and columns from my database. I mean after loading the data in a data table.... I think I need some attributes of the data table, so as to obtain data from the rows and columns.
View 3 Replies
Oct 10, 2011
I have properly configure the database connection. I wanted to get data from the database to 2 text boxes.
[code]...
View 4 Replies
Nov 23, 2009
1. user writes he's details (textbox1 for username, textbox2 for password)
2. user hits "Login"
3. application tries to retrive data from sql server. (in this case localhost/127.0.0.1)
4. application retrieves data from test/tables/members
5. if the specified account information matches the servers data, it will let you through to the next form. Else, it will give an error that the user/pass is incorrect.
Now look, the table looks like this
[id] | [username] | [password]
1 username password
View 1 Replies
Jul 30, 2009
I am trying to execute the code below to list the select item in a checkbox to the body of the mail
Dim CheckedValues As String
For Each item In txt_panview0_ddinput1.Items
If item.checked Then
[Code]....
View 1 Replies
Jan 11, 2010
How to retrieve data from database using Web services on VB?
View 5 Replies
Jan 4, 2010
I am retrieving data from a csv/txt file using oledb driver
ConnString = "Provider=Microsoft.Jet.OleDb.4.0; Data Source = " & System.IO.Path.GetDirectoryName(strFileName) & "; Extended Properties = ""Text;HDR=YES;FMT=Delimited"""
strQuery = "SELECT * FROM [" & System.IO.Path.GetFileName(strFileName) & "]"
In the last line I am getting following error if the filename is large
Is not a valid name. Make sure that it does not include invalid characters or punctuation and that it is not too long.
My question -
Is there any limit to filename or the select query or there is some pattern which I need to follow?
View 3 Replies
Jun 8, 2011
I need to retrieve data in array. We are asked to get id number, name and section and put it in a array and then if we clicked retrieve button it will prompt an inputbox requesting for the id number of students and after we input the id number of the student the name and section will be in the msgbox.
View 1 Replies
Sep 8, 2010
i created a database in my visual basic . and in this database i created 1 table...
i created also a query which is calculating the SUM of a colonm..i want to know how i can do to retrieve this data inside a textbox whos is on my program..ans of course i want that data to be update everytime i inserte data in this colonm...
View 7 Replies
Sep 21, 2011
we want to retrieve all data in our database but we dont know how to do it.. hmm.. we just use to retrieve data one by one.. its just by the search button.
View 4 Replies
Mar 11, 2010
I have managed to connect vb.net to Microsoft database access but now i am struggling with the code to authentication log in. when i log in to the form i want it to display the user name in the label in vb.net form.
View 1 Replies
Apr 4, 2011
I want to retrieve data from a this link:
[URL]
I have used this code:
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
[Code]....
View 3 Replies
Jan 6, 2011
I'll create Database in Visual Basic using MsAccess.
But I want to know that how can retrieve from Access which selected fields are needed...
For example., I've 10 fields in student mark list,
ie, Rollno, Name, ..., Grade...
From those 10 fields, I want to show only 5 Fields in another VB form...
View 1 Replies
Dec 17, 2011
my program has a datalist which list out all the item from datasource and display the detail information on different textbox the problem happened while i click "vitamin a" from datalist, and the "supplier name"will display "daily medicine",then when i click "vitamin b", it will display "sunny medicine",finally when i clicked back "vitamin a", the supplier name still remain "sunny medicine" which mean it does not change from "vitamin b"?
View 3 Replies
Mar 11, 2010
I have 2 checl boxes bol1 and bol2 and i stored a record after ticking one of them and now i want to make a function to retrive what i stored in the access data base in check boxs as well according to the ID. the table name is check_table and the columns names are "bol1 , bol2" the type is (yes,no).
View 3 Replies
Mar 11, 2010
How can i retrieve data information displayed on the hyperterminal or is there any way to redirect the information being displayed on hyperterminal to a file?
View 2 Replies