2 Exists Function In 1 Sql Statement?
Jul 1, 2009
Is it possible to use 2 exists function in 1 sql statement. Below are part of my
select m.ModuleName,sh.Day,sh.Time,sh.Venue FROM Module m INNER JOIN Schedule sh ON m.ModuleID = sh.ModuleID INNER JOIN Student s ON sh.StudentID = s.StudentID WHERE EXISTS (Select * FROM MsgIn WHERE MsgIn.MsgNumber = s.Phone) AND WHERE EXISTS (Select * FROM MsgIn WHERE MsgIn.MsgContent LIKE '%MON%' = sh.Day)
I tried to do like this but an error occured.
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Mar 30, 2009
I have the following insert into statement. What I want to do is insert the values to gprdsql.TblOracleNos if TxtOracleNo is not empty, therefore if a user logs on and fill the textbox the values are saved to the table. However, if the oracle number exists in gprdsql.TblOracleNos (i.e, the values ) it should not insert the values, presently it creates the same record again with same values (when the save button is clicked) and this creates duplication. Instead probably bring a pop up message "Oracle number already exists. [Code]
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Feb 7, 2012
file.Exists function not working
Dim f1 As New FileInfo(Server.MapPath("/CaseStudyImages/TemporaryImages/"))
Dim f2 As New FileInfo(Server.MapPath("/CaseStudyImages/" & success & "/"))
[code]....
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Sep 13, 2010
The following works:
[Code]...
However, the following doesn't work:
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May 22, 2012
I have this code:
[Code]...
EDIT: CELL_VALUE_FLOAT is a Nullable(Of Double) and CELL_VALUE_INT is a Nullable(of Integer) In Quickwatch the condition evaluates correclty to False, but when running the If() function evaluates to the True part.
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Jul 14, 2009
I know normaly you have to use Return before "End Function", but now the Return is in the Try and Do statement and I can't find a way to variable the Return.[code]...
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Sep 28, 2009
I am a little confused about the use of a return statement in a function. If I understand correctly the return statement returns a value but where? Where is the value being returned to?
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Mar 9, 2012
I have a multiple-value-single-string as a parameter field in a report in Report Builder 3.0 (e.g. 20124, 20125). Now I want to split up this string, and show "Summer 2012" instead of "20124" and "Fall 2012" instead of "20125. I am using Visual Basic. Here is my two functions I have made in Report Builder 3.0 custom code. The error is in the second function in the "If Right(yearterm)..." line. It gives me a syntax error. If I write "String.Right" it gives me the error: "'Right' is not a member of 'String'". If i take out the whole "If statement" the report will run but "20124,20125" gives me this: ", 2012, 2012".
Public Function SplitParameterValues(ByVal parameter As Parameter) As String
Dim result As String
Dim a(0 To 10) As String
[code]....
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May 1, 2012
I have 2 functions that need to work together.1 function is to generate a chart number. The other function is to search via SQL to see if the chart number exists. if the chart number doesn't exist then i need function 2 to return a boolean value so function one can generate a new chart number example code: [code] Now i know that i am probably using the incorrect sql statement, my main issue is that i dont know how return available back to the function.
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Jun 16, 2011
I have something that I want to do and what looks very simple, but I cannot get it to work. I want to build a function that gets as input a xdocument and some other strings. It should have a return that contains a filtered part of the xdocument in a way that I can use it as input for a new Linq function. This is what I mean:
Private Function fncGetFilteredDecendantsOfNode(ByVal xdocDoc As XDocument, _
[Code]...
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Jun 1, 2009
I have trouble with my vb application.I create query in dataset like this :Select * from Trans where year(dateTrans)=2009 and month(dateTrans)=5But is not work and error message : year and month function not identified, what is the problem ? what a sql date function ?If i create databound from dataset and drag n drop date field in form with datetimepicker control, if i had update dataset, date field is empty.Whats wrong with datetimepicket databound.
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Apr 12, 2010
1. I would like to know why a Return statement is needed in the function in the first set of code, but not in the second(even though it still works with the Return statement). The functions are called the same way, so what is the difference?2. Why in the second code, the variable FutureValue is allowed to have the same name as the function? But when, in the first set of code, I try to rename the variable "discountPercent1"(in the function) to the function name "SetDiscountPercent", VB 2008 Epress gives the error message "The name conflicts with an existing symbol with the same name"?
Public Class frmInvoiceTotal
Private Sub btnCalculate_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnCalculate.Click
[code].....
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Feb 25, 2011
I am using a two-dimensional array of 10 elements, but my code is extremely slow.
[code]...
I create a new empty array with every iteration of the for loop. Is there a way I can use the same array but just clear it instead?
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Apr 18, 2012
How to declare two object in one statement for vb.net?
Example
If IsNumeric(TextBox1.Text),(TextBox2.Text) Then
lbl_answer.Text = Val(TextBox1.Text) + Val(TextBox2.Text)
Else
MsgBox("Error only number can be calculate")
End If
I can do
if isnumeric(textbox1.text) then
But I can't say
if isnumeric(textbox1.text), (textbox2.text)
How can I do so?
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Feb 14, 2012
What is the wrong in the below code?
ClientScript.RegisterStartupScript(
Me.GetType(),
"key",
"return confirm('Are you sure you wish to delete these records?');",
True)
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Oct 23, 2010
I'm fairly new to learning visual basic. I'm trying to create a program that dynamically generates a EXE file that performs mouse movements and keystrokes. To dynamically generate EXE files, I am using the CODEDOM API for Visual Basic.
[Code]...
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Mar 15, 2009
In Access, it is easy to call a user defined function in a sql statment, exampleSub AAdim mDb as[code]...
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Jun 18, 2010
I am having issue with this function where wait_rtn statement does not work and errors out with error 0. it is suppose to search the screen and if it finds (true) get out of the loop...
[code]...
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Nov 9, 2011
Can i insert in two tables data with one insert statement in .net VB 2008?
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Jul 12, 2010
I am trying to clean up my code a bit.
I made the following function:
Public Sub sqlUpdate(ByVal table As String, ByVal column As String, ByVal var1 As String, ByVal column1 As String, ByVal var2 As String)
Public CN As New MySqlConnection
Public cmd As New MySqlCommand
[CODE]...
Which is fine, if I want to use mysql update all I have to do is call something like: sqlUpdate("test", "test", 0, "test", test) I was wondering if I could do the same with the SELECT statement and make a function. I cant think of a way to do it though...
sqlConnect()
Dim cmd As New MySqlCommand
With cmd
.CommandText = "SELECT * FROM users WHERE username=""" & lblAccountName.Text & """"
[CODE]...
The data I would want to extract would be different every time.
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Aug 17, 2009
I am a excel vba developer, and all public functions i would put in the module. I assumed by creating a .vb rather then a module i can put all functions i use regulary throughout forms in this.however i get the error on this code
Function CopyFile(ByVal x As Integer) As String
Dim FileToCopy As String
Dim NewCopy As String
[code].....
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Oct 14, 2009
See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
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Jan 1, 2010
I was convinced that If <expression> Then <statement [:statement]> Else [statements] in concrete form of If a = b Then SayHello() Else SayBye() End has sense. I read article on msdn on If-then-else, but I forgot why I was reading, so I concluded, that snippet above means this
If a = b Then HelloIsSaid : IsNotEnded Else ByeIsSaid : IsEnded But I have tested it now, and I see, that Else without statement is nothing more than decoration. It would be pretty good if it had function I described. Do you think its good request? Or do you know any circumstance where this Else has some function?
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Jun 8, 2009
y friend and I are re-learning Visual Basic, and we are stumped on this bit of code.
For intAsterisks As Integer = 0 To intLine - 1
lblAsterisks.Text = lblAsterisks.Text + "*"
Next
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Jun 24, 2011
I have the following SQL:
[Code]...
I want to put it (the select count statement) in this LINQ statement so I can get the sales count in my linq statement: Dim TheLeads = (From L In DB.Leads Where L.IsDeleted = False Select L).ToList() Is this possible to do in LINQ?
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Oct 12, 2011
I want to make an numerical integration method with takes in an analytic function and integrate it over a specific interval. For the numerical integration procedure I want to use some procedures in nr.com. The problem is that these are programmed in C++ and they uses functors to pass a function to the integration method. How can I do this in VB 2010?
I want to initialize the function (i.e. set a=1,b=0 for function y(x)=a*x+b) and then pass the function to the integration method. Then when the integration method call the function it only calls the function with one parameter (i.e. x since a,b is already set)
What is the best way to do this in VB2010?I want to make a general integration method where I can pass any single valued function and integration limits.
I have just started using VB, and from what I have found so far it seems like the tools you have is
- to us a delegate for the function
- to use a lambda expression for the function
- send a pointer/adressOf
- to create a function class/structure and submit this to the function
As for now I am most inclined to create a function-class. But I am not really sure how.F.ex. I make different classes for each "uniqe function" I want to integrate, but how can I pass them to the integration function when I need to specify the argument type in the integration-function-call?This seems like a basic problem which applies to many Math operations, so I think it would be very useful to clarify this.
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Feb 23, 2009
add an if statement and an exit statement to my do loop that exits when my future value (FV) is greater than 1000, then to change the exit statement to a continue statement so my loop will continue even though my fv is greater then 1000, point is to get this to run even though my if statement doesnt do anything. problem something wrong in my code and an exception error (xception of type 'System.OverflowException' occurred in mscorlib.dll)
so can someone show me where or why I have an error is, what am I overthinking now! I could use a hint, OMG i could use a tutor for that matter
[Code]...
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Jun 23, 2010
A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
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Aug 4, 2010
I cant get this SQL statement to insert any of the values in the form to add to the database
sql
sql = "INSERT INTO prevresults (ExamDate, ExamTime, CorrectAnswers, PassPercentage) VALUES (date.now, time.now, rightanswers, percentage.text)"
[code]....
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Apr 1, 2010
I'm trying to undersatnd the syntax of calling a funciton and it seem confusing when I'm using a web service in ASP.net. Maybe this question should be in an ASP forum, but it is a VB question. This simple web service allows you to type in your name and it response with an alert box with you name.
My question is, How can you call a function with 2 arguments when the function is only defined for one. I understand that the second argument is actually a method that handling the respons, but how can you interchange function arguments for methods and how do you know that there are methods for
Here's my call:
<script type="text/javascript">
function HelloWorld()
{
var yourName = $get('txtYourName').value;
[CODE]...
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