I have made changes to my database on one of my table. Before I had this field:
ORDER_AMOUNT
which was a NUMERIC(5,2) field.
The field has been renamed like this:
ORDER_DETAIL_AMOUNT
But ever since then each time the app tries to take something from this table, this error occurs:
Invalid column name 'ORDER_AMOUNT'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Invalid column name 'ORDER_AMOUNT'.
I'm completely new to MySql and I'm using Visual Studio 2012, can anyone help me out understand what's the problem and how to fix this?
Same thing then : You renamed it in the design so you have to rename it in your app to.
There is probably a place where you refer to ["ORDER_AMOUNT"]. Now the app expects to see this column in the database. Since it is now called ["ORDER_DETAIL_AMOUNT"] it won't find it and will give you the error.
Change the name in the app. And Voila.
Related
I have a table with a field which is of a calculated type and contains the following expression:
IIf(IsNull([OrderValue]),[TotalPhaseLabourCost]-[DefaultOrderValue],[TotalPhaseLabourCost]-[OrderValue])
For some reason when I go to open the table in any view it throws the error:
"There was an error compiling this function.
The Visual Basic module contains a syntax error.
Check the code, and then recompile it."
However, I have this database currently open on two laptops, one works fine and the other has this issue. I have checked both db's refs and they also match up.
That's a bit vague, so I can only make guesses.
Try to compile the code as the error message says.
check if you have any function with the same name as your field
Try replacing IIf(IsNull([OrderValue]), by IIf([OrderValue] is Null,
You probably miss the leading equal sign:
=IIf(IsNull([OrderValue]),[TotalPhaseLabourCost]-[DefaultOrderValue],[TotalPhaseLabourCost]-[OrderValue])
Or you could use:
=[TotalPhaseLabourCost]-Nz([OrderValue],[DefaultOrderValue])
For me there was some problem with some fields (it showed an error message #NAME? in some of the fields (date, number) in the 'new' record).
For me it worked to close the table, right-click it and open in design view.
For each of the fields with problems, I choose the data type (that was already shown) again from the drop down menu (so, same data type!).
Save.
Then it didn't give the error messages anymore.
Having a strange problem in vba access. I have a text control control called txtUserName on a form and am trying to get the contents which is all but child's play. When I try to run or complie, I get the Method or Data Member not found error. However, when I type me. Intellisense shows txtUserName. I have gone as far as copying and pasting the name from the control's properties and still get the error. What am I missing? I am completely perplexed.
Thanks in advance
Don
In this case, I was just building a SQL string. I did find the problem, there was a bad control reference, however, it was not the one that was highlighted (highlighted was the first value in an insert into string and it was actually the 3rd value)
What is wrong with this code. I am checking whether there is an available record in the database before inserting a new serial number. When I enter any record whether available or not, it throws an error message:
"Expression is not valid". (PowerBuilder Classic 12.5 and SQL Server
2008)
If This.GetColumnName() = "serial_No" Then
long ll_serial
ll_serial=dw_newrecord.find(data, 1, dw_newrecord.rowcount())
if ll_serial>0 then
messagebox("validation error", "The record already exists")
return 1
end if
End If
It is likely that your data expression has a syntax error. It can be some misformed code -like missing quotes- or maybe that the column name is incorrect.
To help for tuning a filter or find expression, you can test it in the datawindow design screen via the Rows / filter menu.
A better solution for long-term coding design would be to integrate the Datawindow Debug Machine (made by a colleague of mine) to your project. It is a precious tool to prototype datawindow expressions for finding, filtering but also for dynamic objects creation / modification in a datawindow. And while correctly interfaced with a datawindow ancestor of your project, it can help with filters and find expression errors like here.
EDIT: As RealHowTo noticed, the tool has been updated. Here is the current latest version (but there is no updated demo screencast though).
I'm very new to SSIS, so please bear with me. A developer gave me a SSIS package and asked me to create a scheduled job on our database server to run it. He says it runs on his development box but I'm seeing the job fail with the following data type mismatch error:
0xC020837F The data type of column "output column 'col1' does not match the data type "System.Byte[]" of the source column 'col1'"
I opened the package in Visual Studio, and in the Input and Output Properties of the item, it shows both the External Column and Output Column as being of data type database timestamp [DT_DBTIMESTAMP]. I checked the source column on the server and verified that it is a datetime column. Are there any other reasons this error could be thrown?
This looks like your source table definition is not the same on development and production environment. Since You didn't provide enough details about what kind of source component and what connection manager You use and what is your source query (maybe You CAST or CONVERT some data), we have to make some assumptions.
As stated in SSIS Error and Message Reference, error code 0xC020837F (-1071611009) has name DTS_E_ADOSRCDATATYPEMISMATCH and description:
The data type of "" does not match the data type "" of the source
column "__".
From error name (DTS_E_ADOSRCDATATYPEMISMATCH) and error message part "System.Byte[]" I conclude that You are probably using ADO NET Source source component.
For a start check following: open properties of source component, uncheck particular column and check it again - this forces source component to refresh external and output - this trick works for oledb source it might help You also
If that doesn't help, check following links to see if some of your source data types map to System.Byte:
Integration Services Data Types
SQL Server Data Types Mappings (ADO.NET)
Working with Data Types in the Data Flow
Probably, on either development or production environment, column is of timestamp, image, varbinary or some other type that maps to managed System.Byte[] but on the other it is not. Please recheck source tables definitions.
If this answer doesn't help You, please post create statements for your source tables as well as source query itself.
I am trying to populate a dropdown list control on an web page using VS 2008 and keep getting an error that it can't load the DataContext. My backend is a SQLx server 2005 DB. I create a Link To SQL data context and have 1 table in it. My LinKDataSource is as follows -
asp:LinqDataSource ID="LinqDataSource1" runat="server"ContextTypeName="DACDataContext" TableName="portfolio">
/asp:LinqDataSource
My dropdown definition is:
asp:DropDownList ID="ddlPortfolio" runat="server" Width="165px" DataSourceid="LinqDataSource1" DataTextField="porfolio_name"
DataValueField="portfolio_id">
/asp:DropDownList
I can see in my properties of my DatContext that the ContextTypeName is DACDataContext
The pecific errors I get are:
HttpException (0x80004005): Could not load type 'DACDataContext'.
and
InvalidOperationException: Could not find the type specified in the ContextTypeName property of LinqDataSource 'LinqDataSource1'.]
I know this must be something really stupid but I am at my wits end.
Please help.
Verify that DACDataContext is public and you may also try fully qualifying the type (ie. ContextTypeName="MyNamespace.DACDataContext")