i am trying to find the column length of a particular sql table, it is working very fine if its 'nvarchar' or 'text' type. But if i try to get the numeric(int/bigint/bit) data type i am getting error. please help me out. The sample code is given below for you reference,'*** Source Code Start
Dim da As New OleDbDataAdapter(strQuery, PortalConn)
I have a 'City' TextBox on one of my web pages but people from many European countries sometimes prefix the city name with the postcode instead of putting it in my dedicated 'Postcode/ZIP' TextBox. I have therefore just added a new RegularExpressionValidator to this TextBox. Its purpose is to prevent the user from entering any numeric characters but allow everything else. After browsing for a suitable regex (I am not a regex expert), I found the following code that was claimed to do what I want.
Unfortunately, the RegularExpressionValidator does not work as expected. Instead of just rejecting numeric characters it appears to reject everything! Where might I be going wrong?
i want to pass null value into varbinary(max) column n to by table
if i do like this i have this function in my app_code .vb class
Public Function Remove_Attachment(ByVal Id As Integer) As Integer Try Dim db As New dbAccess db.commandText = "SP_RemoveAtt_DML" db.commandType = CommandType.StoredProcedure db.addParameter("@InOutVal_Id", Id) db.addParameter("@Document", System.Data.SqlTypes.SqlBinary.Null.Value) db.executeQuery() Catch ex As Exception Throw ex End Try End Function
i got this error. Data is Null. This method or property cannot be called on Null values.
I have req where i have to check the value coming from db is null or not and assign value according to that.Problem here is the field datatype is 'Datetime' so all the time when I tried to use the below line of code its giving me error.How can I pass a null value to datetimefield if value coming from db is null.
I am trying to create a stored procedure where I can insert null values in columns that have a foreign key constraint and allow nulls. The columns I am trying to insert nulls into are commentid and imageid. I have created an Insert statement in a stored procedure and I get the foreign key constraint error. Can you tell me how to allow inserting data in the other columns without having to insert anything in the commendid and the imageid?
Here is my exec of the stored procedure that is not working:
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 have a feedback page with rating controls and I use a stored procedure to insert the record using C#
I get an error when I try to insert about conversion.
I have 20 ratings and a textbox I think the error is with the last parameter @Overall
it displays on the page as 4.9 in a label control, it is previously calculated in the Calculate_Ratings(), and it is declared as a decimal, I have also tried it declared as double. My column is declared decimal(1,1) in sqlDatabase
The Error says
System.Data.SqlClient.SqlException: Error converting data type numeric to decimal. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
I currently have a numeric field as numeric(5,2) which has 2 digits after the decimal. Now I need to be able to display 4 digits after the decimal. But if I change the field to (7,4) then it places 2 zeros after the last numbers. For example: 1.32 changes to 1.3200.
But some records will have exactly 4 numbers after the decimal such as : 2.4375.
My issue is I don't want all the data to have 4 numbers after the decimal. I don't think there is another data type that will allow this.
i'm working on a SqlDataSource object, it has a deletecommand which is ( DeleteCommand="delete albums where albumid=@albumid") but whenever i try to delete a record, where albumid is an identity primary key column, i receive the following error message , An entry with the same key already exists. but there are no duplicate records, i wonder why i receive this msg, may i pls mention again AlbumId is a Primary Key Column with Identity(1,1)
I have a insert into statement thats inserting my numbers from a numeric text box on my aspx page. I am choosing the Amount Type then putting in a a number.
So i have a drop down that i select example Direct Charge then i enter 600.00 and click add it puts that in to the databse for me woot..
I then put in say Misc Credit and enter 200.00 it inserts in that into the database woot.
The look up table that has my amount types has a field called numeric opperator which is either + or - the Credit being a - and the Charge being a + then my stored procedure takes all my + numbers and adds them up and subtracts all the - numbers.
I want to change that so that it actuall be inserted into the table as a - number form the start. So I want choose Misc Credit enter 200.00 and click add then my event says o yea thats a credit insert 200.00 as -200.00
I have to create a simple application which scans, displays and stores the info from a barcode. I have been able to sort the scanning and display part of this application but I need to know how to store the infromation entered into a textbox to a database and then be able to display the stored data as a list at a later stage.E.G. Once the "STORE" button is clicked, the information/text within the textbox is stored to a database. Once the "VIEW STORED DATA" button is clicked, the stored information in the database is displayed as a list.I am a complete beginner when it comes to creating web applications using asp.net. Also, the type of database to use (i.e. sql, wamp.etc) and how to link it to my application is also puzzling.
I tried to establish a relation between two tables in such a way that Table_Contracts will still accept NULL values for [PO_No], but [PO_No] on TableContract will be automatically updated when [PO_No] on Table2_PONo changed. Moreover, if you want to delete a record on Table2_PONo, it needs to be stopped if there is a related data in Table_Contracts.
I set a relation with these parameters:
Check existing data on creation or re-enabling> No
Enforce for replication> No
Enforce foreign key constraint> No
Delete Rule> No Action
Update Rule> Cascade
I got this error
Introducing FOREIGN KEY constraint 'FK_Table_Contracts_Table2_PONo' on table 'Table_Contracts' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints.