I have a table converted from Access and the identity keys were lost. Now I need to make the id column the identity column, but it already has a lot of null values, how do I auto generate integer values for the null rows? The row ids are incremented, so if there is a way to auto increment the ids
Now the issue is that that every document doesn't has document number. I want to make invisible the docuNumber column of the grid viwe if all values in the docNumber retrieved are null.for example:
docnumber tite null Document 1
null Document 2
null doucment 3
null document 4
if returned result match above where all docnumber are null then make the gridviwe docnumber column ivisible eslemake the greidviwe column visible.
so i have a content page that load some content into repeater one of the repeater items is UserControl, when the page is load for the first time everything is perfect, but if i try to do postback and reload the repeater i get this error: Code:
Exception Details: MySql.Data.MySqlClient.MySqlException: Invalid attempt to Read when reader is closed.
this error is raised in the repeater databind event.
I am trying to insert NULL value in oracle database using asp.net form. and its not inserting null value check my below code and guide me what changes I have make
Dim cn As New OracleConnection("Data Source=ab; User Id=abc;Password=abc") Dim SQL As String 'build the INSERT statement Dim xy As New System.Text.StringBuilder 'Dim strDate As Date...............................
True) to update database row that returns null values from date and numeric columns,Whenever i try to update same row with null (or empty) values on both date and numeric columns, it results in sending '01-Jan-0001' for date column and 0 for numeric column. I want the user to have the options of null or corresponding values for the update.
I am developing web application using csharp and MS SQL as database. There is a column in table that is storing values which as numbers and letters. Letters are in front like JK26262, JK26263,JK26263.
Now I want to select numbers only from a table column and leave letters. In other words I want an select statement that will select values as follows:
I'm getting a "no data exists for the row/column" error when i am giving wrong value in key column and press button to import data from excel,how can i fix this error and avoid collapsing the application.
I have read the excel in asp.net. I am using OledbDatareader for read the column name.
[Code]....
Now my problem is the "date" field. If Excel sheet having column name "Date" then i got the error. i could not use the Column index because its also not fix. How can i ignore the upper case charactors in column name ?
I am doing Import/Export. While export i want to disable some column in excel sheet, so during upload or import same primary key I can use, instead of user modify such column.
environment: VS2008, MySQL 5.1.45, .net Connector 6.2.2
Error msg:
NoNullAllowedException: Column 'idNames' does not allow nulls.
The MySQL DB has on "idNames" (Primary Key) a tick-mark for: primary Key, Not Null, Auto-Increment Also: I can add/retrieve records via the 'MySQL Query Browser'; I see the data via VS2008 'Preview Data'!
As said in the comment below; when the 'idNames' is explicitely given the rows.add works fine. So it seems that I miss something around the 'auto-increment' business!
Can anyone reliably get the EDS to save a nullable column to the databse as a "null" when bound to any of the controls such as "FormView"?I have tried using several different UpdateParameters (Session, ControlParamater, Parameter, etc). I have tried setting "ConvertEmptyStringToNull" to true and leaving the property off entirely. Nothing works. On my "Inserts" it works fine.(I have made sure the column is set to nullable = true in the Entity Designer.....)
I have a table called category that has tow attribute (Cid,Name)
what can i do to insert category name only without allow user to insert category id in my webpage, I use view detail control and make the wizard link but when run the error message appear (Cannot insert the value NULL into column 'Cid)
I have a Table, which contains a list of league players. Each season, we record their Points per Dart. Their total PPD for that season is stored in other tables and extracted through other queries, which in turn are imported to the master table "Player History" at the end of the season for use as historical data.
The current query retrieves each players PPD for each season they played, when they played last, and how many seasons played.
The code for Last season Played has become too long and unstable to use. it was originally created, and split into two separate columns because a single SQL was to long. (LSP1) and LSP2) which work, but as I add seasons, Access does not like the length of code.
In short, i need to find a more simple code that will look at each row, and look in that row for the last non null cell and report which column that last non null value is in.
So if a player played seasons 30 & 31, but did not play 32..but did play 33, the Column with the code should be titled Last Season Played, and for that Player, it would state "33" in that cell, indicating that this player last played season "33"
