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!
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I want to grab some values with a form and then do a lookup via a datareader in a data access class (N-Tier).
I want to return a data list and bind that to a form view control.
Here is some code from the DAL, Business object and search form.
The parameterized query doesn't like the data being passed to it from my web page .
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Where is the nvarchar size of 4000 coming from ?
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)?
View 2 RepliesScenario: 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.
my column data is from 'nvarchar' type and the data for my text box is from string type. when i want to compare these value , the expression always is false . even when the values are equal. i use Convert.toInt32 for my column have dataType int but in this part i want compare two string type.
View 2 RepliesIn the following code, should we change the parameters from SqlDbType = SqlDbType.Int to SqlDbType.NVarChar?
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I want to use three language: English, German and italian. If i will use varchar type, will i face any problem or I have to use nVarchar.
View 3 Replieshow can specified nvarchar data type without N''?
View 2 RepliesI am using sql server 2008. Could anyone tell me the differance between varchar(25) and nvarchar(25)? Which is more efficient?
View 3 Repliesthis code is giving me error:
error in converting datatype nvarchar to bigint this is my table values:
@customer_first_name nvarchar(50),
@customer_last_name nvarchar(50),
@customer_address nvarchar(max),
@gender nchar(10),
@date_of_birth datetime,
@customer_email_id varchar(50),
@customer_occuption varchar(50),
@customer_phone_number Bigint,
@nominee_name nchar(50),
@customer_id nvarchar(50),
@account_type nvarchar(50),
@account_number nvarchar(50),
@transfer_access_code nvarchar(50),
@account_balance Bigint,
@pin_code BigInt,
@nationality nvarchar(50),
@password nvarchar(50)
lblAmount.Text = HFamount .Value ;
int balamount = Convert.ToInt32(lblAmount.Text);
int Cpincode = Convert.ToInt32(txtpincode.Text);
long phone = Convert.ToInt64(txtphone.Text);
string cust_id = CUSTOMER_ID_GENERATOR();
string strconstring = ConfigurationManager.ConnectionStrings["ONLINE_BANKING2_ConnectionString"].ConnectionString;
SqlConnection mycon = new SqlConnection(strconstring);
mycon.Open();
SqlCommand cmdRegister= new SqlCommand(sqlquery,mycon);
cmdRegister.Parameters.Add(new SqlParameter("@customer_first_name",txtcustname.Text.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@customer_last_name",txtcustlastname.Text.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@customer_address",txtAddress.Text.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@gender", rbtngender.SelectedItem.Value.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@date_of_birth", txtDOB.Text));
cmdRegister.Parameters.Add(new SqlParameter("@customer_email_id", txtemail.Text.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@customer_occuption", txtcustoccupation.Text.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@customer_phone_number", phone));
cmdRegister.Parameters.Add(new SqlParameter("@nominee_name", txtnominee.Text.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@customer_id", cust_id));
cmdRegister.Parameters.Add(new SqlParameter("@account_type", accType.SelectedItem.Value.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@account_number", ACCOUNT_NUMBER_GENERATOR()));
cmdRegister.Parameters.Add(new SqlParameter("@transfer_access_code",Transfer_code()));
cmdRegister.Parameters.Add(new SqlParameter("@account_balance", balamount));
cmdRegister.Parameters.Add(new SqlParameter("@pin_code", Cpincode));
cmdRegister.Parameters.Add(new SqlParameter("@nationality", DropCountry.SelectedItem.Value.ToString()));
cmdRegister.Parameters.Add(new SqlParameter("@password",txtpasswd2.Text.ToString()));
cmdRegister.ExecuteNonQuery();
mycon.Close();
In one of my stored procedure I have to compare two nvarchar datatype values.The values containing both numerical and characters.Which function should I write? And one more problem i.e if a number containing zeros in starting ,I should also match including zeros.But not omit zeros.
View 3 RepliesOn one of our applications we are getting a timeout error on an 'additional details' field in our database, the field type is nVarChar(MAX).
The error seems to be happening when a user enters more than 4000 characters into the additional details field. It is my understanding that this fieldtype can store up to 8gb of data and should be used in stead of the "Text" field type?
We have since limited the user from entering more than 4000 characters via the application, however the DB still contains legacy data - when the 'additional details' with more than 4000 characters is pulled out - "Timeout Error".
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.
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I have a doubt in regards to use varchar or nvarchar for portuguese content, so the question is:varchar support all portuguese chars? or must I use nvarchar (unicode)
View 2 Repliesi want to convert all my database columns whose data type is char,varchar, nchar to nvarchar datatype. But the main problem is that some of my primary key, foreign key columns are also of varchar datatype. So when i try to change their datatypes to nvarchar then i receive the errors related to constraints of Primary Key, Unique Key and indexes. how to change the datatypes to nvarchar after droping the constraints and after changing all constraints will apply again. I also want that no data loss will occur.
View 5 RepliesThe following datatype or size property of <Tablename>.<Columnname> doesn't match <Tablename>.<Columnname>. When creating a foreign key relationship, the data types and other properties of selected columns must match. Select a column with the same data types and other properties as the related column. The properties that must match are Data type, Length, Precision, Scale, and Collation.
I am trying to add a constraint to my database and I keep get the above error. I can find Data type, length, and Collation in the properties. What are precision and scale in this context. I don't see such settings. Specifically I am trying to add a relationship from the aspnet_Membership table to a table that I added. I have put a relationship on aspnet_Users.UserName to another table, so I am baffeled.
I have a table in my databse with int's nvarchar's datetimes and money
I am trying to pull this data out to use in program and putting nvarchar as a string money as a decimal but what do i need to use for the date cheers
Here is the code:
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After I try to test the page, I am getting the following error:
System.Data.SqlClient.SqlException:
[b]Error converting data type nvarchar to float. [/b]
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I have an output parameter called '@packIds', that I create in ADO.Net using the code below:
SqlParameter packIdPara = new SqlParameter("@packIds", null);
packIdPara.SqlDbType = SqlDbType.VarChar;
packIdPara.Direction = ParameterDirection.Output;
sqlCmd.Parameters.Add(packIdPara);
How will I specify that the parameter '@packIds' is of max size? I cannot find any code for this.
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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?
ALTER PROCEDURE [dbo].[usp_addvisitor] @lastname nvarchar(50), @firstname nvarchar(50), @visitorimage image, @gender char(6), @personalid nvarchar(50), @vehicleno nvarchar(20), @company nvarchar(50), @represent nvarchar(100), @phonenumber bigint, @mobilenumber
bigint, @address nvarchar(100), @remarks nvarchar(200) AS INSERT INTO tblVisitor VALUES (@lastname, @firstname, @visitorimage, @gender, @personalid, @vehicleno, @company, @represent, @phonenumber, @mobilenumber, @address, @remarks)
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?
p.s I have also tried Level.SelectedItem.ToString
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
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and my SQLDataSource is here
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and gridview is here
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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.
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I have a requirement to have a multiline textbox that accepts any text from any language and stores this into the database for later use. I am using Linq with ASP .NET 3.5 with a SQL Server 2005 database.
View 2 RepliesI have latitudes and longitues in a table but they are in a nvarchar(50) field althought the values are like this -> 39.7355 I need to be able to convert those values to numeric to execute a calculation and update a new field
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my radiantlatitude field is of type 'float'
