Programmatically SQL Query Using Like Operator?
May 13, 2009
I am attempting to retrieve records from a table of insurance companies via code in the application I am writing. tblInsuranceCompanies is a table in an Access 2007 database.In the application the SQL query retrieves no records and does not produce an error. The code is in a Try Catch code block.When I walkthrough the code, I can view the content of the Sql statement. I can copy this and paste it into Access directly-- the result giving me two records.[code]...
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Apr 28, 2010
I am connecting to an Access database and using a parameter query with the LIKE operator to return all rows that match query. The string to search for is taken from a Textbox
sql =
"Select * FROM Allview WHERE Info Like" &
"*" &
CStr(TextBox1.Text) &
"*"
The query does not return any data in vb, but when run from access with same string, there is data returned.The connection to the database is done correctly, as I am able to return data with various other queries.
Partial code :
Dim
con As
New OleDb.OleDbConnection[code]....
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Dec 9, 2011
I'm receiving the following error from the query below:
Syntax error (missing operator) in query expression 'LTC_FBS.DBS_NM = LTC_FBS_EMP.EMP_ID
INNER JOIN LTC_FBS_REV on LTC_FBS.FBS_REV = LTC_FBS_REV.REV_I'.
Dim sSQL As String = "SELECT FBS_ID, CLM_NUM, EMP_NM, REV_NM, DATE_SUBMIT FROM
[code].....
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Nov 8, 2010
Why the following code produces the error?
The query operator 'ElementAtOrDefault' is not supported
Dim Im = (From view In Db.Views Where _
view.Pass = txtCode.Text _
[code].....
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May 22, 2009
I need to build a dynamic linq query with or operators. I have seen PredicateBuilder but that is in C# and my project is in VB. Basically I need to build a WHERE clause similar to this:
Where((this = 1 AND that = 2) OR (this = 1 AND that = 4) OR (this = 2 AND that = 4))
but the problem is the number will have to be determined dynamically at runtime, and added using a loop, like
for each item in myItems
query = query.OR (this = item.a AND this = item.b)
next
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Apr 20, 2011
I've got a problem in one of my SQL queries, the type GUID can't be used with the operator & (obviously from the title). Here's the few lines of code which I'm using:
Dim ClientsAssetID As Guid = New Guid(ClientsAssetIDTextBox.Text)
Dim Client1 As Guid = New Guid(Client1TextBox.Text)
Dim Client2 As Guid = New Guid(Client2TextBox.Text)
[code]....
ClientsAsset, Client1, Client2 and Client3 are all of type GUID, but are entered into the textboxes as strings, are converted to guid and then should all go smoothly into the query, but it's having a problem with linking everything together. The error I'm
getting is "Operator '&' is not defined for types 'String' and 'System.Guid'.How do I fix this? I've tried a few different things, such as using Ctype in the query, but they have also circled back to this error.
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Jul 6, 2009
I have been working at this for awhile, searching everywhee, I keep getting the error: Syntax error (missing operator) in query expression 'UPC Code=051384628502'.The block of code this error originates from is: [code] When I make it into a comment, the program works, except it doesn't put the string value I want into the table, nor does it save it.
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Sep 21, 2011
Function updateCoustmers(ByVal ID As String, ByVal codeq As String, ByVal nameq As String, ByVal birthdateq As String, ByVal addressq As String, ByVal mobilenumberq As String, ByVal phonenumberq As String, ByVal certificateq As String, ByVal dateofregisterq As String, ByVal nameofcourseq As String, ByVal priceofcourseq As String, ByVal
[code]....
this is wrong message shown to me ( Syntax error (missing operator) in query expression '[ID]='. )
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Mar 11, 2009
i have to complete a room reservation projecti have a database called project21.mdb and there is 3 table inside rooms,users,and bookingsnow i facing a problems on display my filter data on the datagridview1 ,it appear syntax error(missing operator).this is my code ..i think the problems is appear in this line,but i just cant find the problemsDim cmd As OleDbCommand = New OleDbCommand("SELECT
type,startdate,enddate,starttime,endtime FROM rooms,bookings WHERE[code]......
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May 6, 2010
i am getting error while inserting record in ms access here is my sample code
Dim str As String
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:final.mdb;")
cn.Open()
str = "INSERT INTO 019loan (Salutationinteger,Customername,shortname,
[code]....
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May 5, 2010
I am using vb.net 2003 and accessing an Access 2002 database via oleDb and Jet 4.0.I am filling a set of text boxes with data from the database. The Connection, DataAdapter and DataSet are all set using the Wizard. The text boxes fill correctly with the first row of data. I then wished to filter the data so I went into the code and added a WHERE clause as follows:WHERE [Boat Name]=" & xid & "xid is the variable name given to the selected boat name. When I run the program I get the following error message:
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Apr 27, 2012
I'm trying to populate a combobox from another combobox
There are two comboboxes involve:
1. comboSupplierID
2. comboSProducts
[code].....
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Jul 22, 2011
i m having the following code please help me to find out where is error as i am new to vb.net...
device = ComboBox1.SelectedItem having a combobox which will choose any device from CPU , Monitor or Printer Private Sub show_details()Dim deviceNO As String ds.Clear()da.SelectCommand = Nothing deviceNO = ComboBox2.SelectedItem 'id of the device deviceNO.Trim()
[Code]...
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Apr 11, 2012
OpenFileDialog.ShowDialog()
Connection.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0; Data Source = " & OpenFileDialog.FileName
[code].....
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Jan 19, 2010
Banging my head against a wall here. I have a query that looks like this.
SELECT FirstName, LastName, Address
FROM Members
WHERE FirstName LIKE 'JOE%'
That works absolutely fine in query wizard and the DataTablePreview data window. However, when I do this.
SELECT FirstName, LastName, Address
FROM Members
WHERE FirstName LIKE ?
I get nothing when I run the fillby method. If I change the LIKE to =.
SELECT FirstName, LastName, Address
FROM Members
WHERE FirstName = ?
Everything works great. I need to get LIKE working though so I can wildcard search.
I'm using the SQL server OLE db connections if that means anything.
UPDATE
Using the LIKE operator doesn't work at all. When I just swap out = for LIKE. Nothing is returned.
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Apr 11, 2009
I have program, which takes scripts (RGSS) and inserts them into a database. These scripts have lots of quotes and things like that inside them, but I don't think thats the issue here.
The error: Syntax error (missing operator) in query expression
[Code]....
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Mar 11, 2010
My approach is to setup three different queries and save to three different variables and then save the data in the three variables into the new table. I have the new table setup in ms access.As you can see from my code, I had tried many different ways to generate my sql statement but none of them works. Now I am trying to figure out which part of the sql statement goes wrong by testing one by one. The two that is uncomment:
1)Dim SDFH As String = "SELECT SegmentCode FROM SegmentPlantTable WHERE DatePlanted < cdate('" & Date.Today & "')"
2)Dim SDFP As String = "SELECT SegmentCode FROM HarvestTable WHERE DateOfHarvest <
[code].....
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Sep 21, 2011
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
[Code]...
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Jun 4, 2012
Dim cellidentification = ComboBox1.SelectedItem
Dim SCR = ComboBox2.SelectedItem
Dim mySelectQuery1 As String = "SELECT [" +
[code].....
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Dec 26, 2011
Syntax error (missing operator) in query expression 'Serial Number = 'L3FW341''.The Serial Number field is declared as text in Access Db.
I am not sure which operator is missing in my command!Below is my code:[code]......
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Mar 25, 2012
I'm trying to update data to a Access data base using the following [code]...
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Jul 18, 2008
This is not a homework of mine and i had never tried ms access database with vb so i just gave it a shot. so this is my first time and i am just trying not asking anyone to complete my homework. I have been searching for this a lot on internet but couldn't find a solution to this so i decided to ask this question here.
i have this sql code. what i want to do is that create a basic login form where users puts it's username in the UsernameTextbox and Password in the PasswordTextbox. If the the information match then a message box appears saying that the user is valid and if the information does not exist, a mesage box appears saying the users is not valid. now everytime i execute(run) the code, i come up with this error: Syntax error (missing operator) in query expression ''UserName' = 'Admin' 'PassWord' = 'testing123''.
The field names(UserName, PassWord) are also correct they are same as in the database. the information put in the username and password textbox are correct and they match the information on the database. But i dont know why this error comes up.
My code module is the following:
Imports System.Data.OleDb
Public Class LoginForm1
' Cancel button
Private Sub Cancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel.Click
Me.Close()
End Sub
[CODE]...
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Mar 7, 2012
I have 2 comboboxes who are loaded on the formload event with the folloving
[Code]...
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Jan 27, 2010
I am tightening up my coding with the Option Strict set to ON. It has now produced alot of errors. An example of this is:
If AllocatedDGV.Rows(i).Cells("RoomNumber").Value = RoomsAvailableDGV.Rows(j).Cells("RoomName").Value Then
It gives me the following error: Option Strict On disallows operands of type Object for operator '='. Use the 'Is' operator to test for object identity.
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Mar 29, 2011
I am having a problem with this code. I have used this code before on other apps and it works, but I don't have a clue as to what is going on here.
This is the whole event. I get a runtime error msg thats says "Syntax error(Missing Operator) in query expression"
I think this is Legacy SQL coding but I don't know how to make it better.
Private Sub btnEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEdit.Click
Dim Question As Integer
[Code].....
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Apr 6, 2012
I need to write an interface to get data to/from our data files.
We have a low level class that holds field values for each record read from the files.
This just holds two values, the value read from the file (DBValue) and the updated value that may need to be written back to the file (CurrentValue).
These values may be any of the standard value types (integer, date etc) or a string.
Either value (DBValue or CurrentValue) may be null if not defined.
I have written the class to manage this data which works fine while option strict is NOT on.
But we have an office policy of having option strict on all the time.
When I put option strict on, my object value comparisons fail with the error: "Option Strict On disallows operands of type Object for operator '='. Use the 'Is' operator to test for object identity."
Question, how should I change the following code to handle option strict on ...
This is all running on Visual Studio 2010
[Code]...
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Mar 10, 2009
Possible Duplicate: Is there a conditional ternary operator in VB.NET?
Can we use Coalesce operator(??) and conditional ternary operator(:) in VB.NET as in C#?
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Nov 11, 2009
I want to perform equality comparison in VB.NET and cannot get it to work. Error: value of type Boolean can not be converted to System.Drawing.PointF
[code]...
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Aug 19, 2010
Here is the code:
Function getData(ByVal id As String)
Dim reader As SqlClient.SqlDataReader
Dim statement As String
[code].....
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Feb 29, 2012
When Creating a query using the sear Criteria Builder . I keep getting the error : "The schema returned by the new query differs from the base query" what does that mean and how do i avoid this problem in future
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