WebMatrix :: Does Not Change Column Type From Nvarchar To Ntext
Aug 20, 2010
Scenario: If you create a table with a column of type nvarchar, populate it with some content and try to modify it using the WebMatrix editor, from nvarchar to ntext, it does not display any error message or warning that this is not possible. It silently saves and reverts the change, back to nvarchar. Wasted some hours on this issue as I thought my column was ntext, but in fact was still nvarchar.
Expected behavior: It should change to ntext, or if SQL CE doesn't support that, it should notify the user that no change was applied.
I have 1,2,3,4,5,6,7,8,9 stored as nvarchar inside Level in my db.
I then have a dropdownlist with values 1,2,3,4,5,6,7,8,9. When a user makes a selection (i.e 1) (Level.SelectedValue.ToString). This builds an sql query via a param like this:
"Select things From MBA_EOI Where level = 1"
When I run the select I get the following error:
Syntax error converting the nvarchar value '1,2,3,4,5,6,7,8,9' to a column of data type int.
I was under the impression that I was dealing with an Nvarchar field and the selected value as string, where does the int conversion come in?
I've found a lot of similar topics but none of them solves my problem.
I have table structure like that
[Code]....
Everyone suggests to change ntext type to nvarchar(MAX) and life will be beautyfull. But... First, I need ntext, simply because there should be text in this field.
nvarchar(MAX) equals 4096 bytes which is to small for large text. Second, I already have table with ntext field, which does not cause this error.
I would like to know, how to set up the Entity framework to create a nvarchar(50) insted of a nvarchar(4000), when creating a string? by the way I am not using the designer!
I'm trying to compare a parameter of type String with a database field of type ntext. Below is my vb code. carDescription is a field in the database table that is of type ntext. The code didn't work because you can't use the equality operator.
Dim carDescriptionLookupCmdString As String = "SELECT carMake FROM car WHERE carDescription = @description" Dim carDescriptionLookupCmd As New SqlCommand(carDescriptionLookupCmdString, dbConnection) carDescriptionLookupCmd.Parameters.AddWithValue("@description", description) Dim reader As SqlDataReader = carDescriptionLookupCmd.ExecuteReader()
Now i want to get the list of message IDs where the message Text Contains some Special characters as like the characters from the below image. how to query to get the list of message ids where the message text contains any one of this special characters.
I have addded some different languages into database table column(NText), then im retrieving the data and display it on the Dropdownlist and Gridview but some of the languages(like Korea, Japan) displays as boxes.
I attempted to change a table columns data type and in the process caused a lot of issues. I had a date column in one of my tables and stupidly changed it from varchar to date. When I tried to run queries on it I keep getting the 'cant find column 3 error'. Now that tables structure is :
[Code]...
So column 4 is actually the date column. All other queries work for this table. I then tried to change it back and then copied all data to a new table and now I am using the new table and converting the dates as needed but I am still getting the error.
SELECT * FROM postlinks WHERE postlinks.date >= CONVERT(datetime,CONVERT(varchar(10),GetDate(),112))
My table contains a column named visitorimage with image as the datatype. I have a stored procedure to insert an image but whenever I try to create the sp an error occurs saying"Operand type clash: nvarchar is incompatible with image". What's the problem and how to fix this?
when i am trying to uedit my recods in gridview this error is coming. I am using SQLDatasource with gridview and for edit purpose i am using stored procedure. I have manually executed the SP and its woring fine. my SP is here
I am using the abobe code to encrypt and decrypt a query string ID number.Any ideas to how to make this work with id numbers?Bellow is the code and store procdure.
Everything looks fine but I keep getting the error: 'Conversion failed when converting the nvarchar value 'xxxx' to data type int... where xxxx is the the value of @Query.
note MONTH AND DATES stored in single or double digits as they occur. Unfortunately DATE TIME is stored in NVARCHAR Data type column as 2/9/2010, 22/10/2010 etc. Following UK Date here. It is required to pull the data to COUNT No. of Expired. Obviously below one fails.
I get this error when I am trying to concatenate the two fields in bold into one field for a datagrid.
select count(cp.iOwnerID) as enrolled,(duration + '' + duration_interval) AS Duration ,session_id,school_id as SchoolId,program_id as ProgramId,convert(nvarchar(10),session_start_date,101) as SessionStartDate, session_class_size as SessionClassSize from dbo.cnSchoolProgramSessions cn with (nolock) left join customerproduct cp on convert(datetime,convert(nvarchar(10),session_start_date,101)) = convert(datetime,convert(nvarchar(10),cp.dtPurchasedate,101)) where record_status = 1 and school_id = '" & iSchool & "' and program_id = '" & iProgram & "' and (CP.chProductNumber = '" & Me.Label5.Text & "' or CP.chProductNumber IS NULL) group by session_id, school_id, program_id,session_start_date,session_class_size,duration,duration_interval
I have the following problem: I need to store in MS SQL Server 2005 a vary large text in to one field of type nvarchar(MAX), In spite of the configuration is apparently correct I keep receiving the following message in the exception: "string or binary data would be truncated".
I have a column with nvarchar datatype storing the date. I am using a Gridview to display and edit data of that table. Now when I update the table the nvarchar column containing date in the format mm/dd/yyyy gets converted to Jun 9 2010 12:00AM format. I don't want this to be happening. I don't understand why this is happening as I don't have datetime column.
Does it make a difference in terms of the actual size of the database if I define one of the columns as nvarchar(100)? If there are restrictions on the form as for how much you can input, let's say 50 characters, does the db save blank spaces from character 51-100 and create a database that is larger than it would be it the column was defined as nvarchar(50)?
how can in sql server show two columns as one column.. one of them is nvarchar and the other is int from two tables i have did this but it give error
select depart.depart_name+input_comp.no_of_depart as department,dbo.depart.depart_id from dbo.depart inner join dbo.input_comp on dbo.depart.depart_id=dbo.input_comp.depart_id group by depart.depart_name,dbo.depart.depart_id,input_comp.no_of_depart the depart_name is nvarchar datatypeand the no_of_depart is int datatype
the error is
Conversion failed when converting the nvarchar value to data type int.
I'm getting the following error base on dropdownlist selectindexchanged: error converting data type nvarchar to bigint
Below is my dropdownlist code:
Protected Sub ddlTaxName_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddlTaxName.SelectedIndexChanged Dim strConnString As String = ConfigurationManager.ConnectionStrings("BytConnectionString").ConnectionString() Dim strQuery As String = "select TaxName, [Rate(%)] from Sale_Tax where" & " TaxID = @TaxID" Dim con As New SqlConnection(strConnString)
