I am having a problem passing a C# DateTime value to a SQL Server 2005 stored procedure.
The stored procedure takes a parameter of type DateTime and updates a database column with the value passed (column also is datetime type):
ALTER PROCEDURE [dbo].[ProcedureName]
#id int,
#eta datetime
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
BEGIN TRANSACTION
UPDATE
TrackingTable
set
ETA = #eta
where
ID = #id
COMMIT TRANSACTION
END
I pass a C# datetime value to the stored procedure by creating a SqlParameter and executing a parameterised non query.
I can see via the analyser that the SQL executed is:
exec ProcedureName #id=19020, #eta='2012-07-17 10:29:34:000'
and if I execute this directly on the database the update works fine, but via my C# program it fails with the error:
The conversion of a char data type to a datetime data type resulted
in an out-of-range datetime value. The statement has been terminated.
I'm sure I'm being daft but I can't for the life of me see whats wrong. PS I'm new to SQL Server!
Any help appreciated!
Thanks.
Sorry the c# code:
dbWrapper.ExecuteProcWithParams("ProcedureName",
dbWrapper.CreateParameter("id", Header.VoyageID),
dbWrapper.CreateParameter("eta", ETA)
ETA is a DateTime Value.
public void ExecuteProcWithParams(string procName, params DbParameter[] parameters)
{
try
{
using (DbCommand cmd = db.CreateCommand())
{
cmd.Transaction = trans;
cmd.CommandText = procName;
cmd.CommandType = CommandType.StoredProcedure;
foreach (DbParameter param in parameters)
{
cmd.Parameters.Add(param);
}
cmd.ExecuteNonQuery();
}
}
catch (Exception)
{
throw;
}
}
public DbParameter CreateParameter(string name, object value)
{
DbParameter result = null;
switch (databaseType)
{
case DatabaseType.SqlServer:
// Sql Server: NULL parameters have to initialised with DBNull rather than NULL
result = new SqlParameter(name, value ?? DBNull.Value);
break;
default:
throw new Exception(String.Format("Unknown database type {0}", databaseType));
}
return result;
}
Try to set uiculture and culture in web.config.
<globalization uiCulture="en-GB" culture="en-GB"/>
Your passing date format and sql date can be different.
So set culture according to your culture.
I just faced a similar problem buddy!
It's because C# converts date time to MM-DD-YYY and SQL server generates date time based on DD-MM-YYYY.
That's why you get an out of bounds error on your month.
Related
Stored procedure executes fine if executed in SQL Server Management Studio.
In C# (Winforms) I have the following code:
InsertWarning.Parameters.AddWithValue("#idUser", userIDAuth);
InsertWarning.Parameters.AddWithValue("#idPass", idPass);
if (Privileged)
MessageWarning += " gave you privileged access to note " + Description;
else
MessageWarning += " gave you access to note " + Description;
InsertWarning.Parameters.AddWithValue("#Message", MessageWarning);
InsertWarning.ExecuteNonQuery();
InsertWarning.Parameters.Clear();
When ExecuteNonQuery() runs it stops saying the #idUser has no value.
Stored procedure in C#:
SqlCommand InsertWarning = new SqlCommand("_spInsertWarnings", TeamPWSecureBD);
InsertAuths.CommandType = CommandType.StoredProcedure;
Stored procedure in SQL:
[dbo].[_spInsertWarnings]
#idUser int, #idPass int, #Message nvarchar(MAX)
AS
INSERT INTO Warnings
VALUES(#idUser, #idPass, #Message)
using (SqlConnection con = new SqlConnection(dc.Con))
{
using (SqlCommand cmd = new SqlCommand("_spInsertwarnings", con))
{
cmd.CommandType = CommandType.StoredProcedure;
//Please Make SqlDataType as per your Sql ColumnType
cmd.Parameters.Add("#idUser", SqlDbType.VarChar).Value = userIDAuth;
cmd.Parameters.Add("#idPass", SqlDbType.VarChar).Value = idPass;
con.Open();
cmd.ExecuteNonQuery();
}
}
The question in this post looks similar to yours:
Stored procedure or function expects parameter which was not supplied
Have you tried using the .Parameters.Add("fieldname", type, value) instead? I'm wondering if even though you are seeing the value 8 in a debug session, it's not being recognized when you do a stored procedure call.
Thinking about this again, my guess is you're missing a different parameter than #idUser, and that parameter does not have a default value assigned. Sometimes SQL Server reports the wrong name back for a parameter missing a value.
Look at your proc header and confirm that you're passing all the required parameters that the proc expects, or that you have sensible defaults assigned for the ones you don't always want to pass.
I guess this might work, i have posted the code from where you are adding.
InsertWarning.Parameters.Add("#idUser", SqlDbType.Int);
InsertWarning.Parameters["#idUser"].Value = userIDAuth;
InsertWarning.Parameters.AddWithValue("#idPass", idPass);
try
{
connection.Open();
InsertWarning.ExecuteNonQuery()
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
I need to get an employees start date. What I am trying to do is when a check box is checked make a call to the database get the date and return it into my C# code. I think I have everything set-up close to perfect, but my call procedure returns an error. Can someone assist me with setting up syntax so that when a check box is checked it will make a call to the database, run a stored procedure, and return the result (as a datetime) from the stored procedure back into my C# syntax?
EDIT --- The error being thrown is:
cannot implicitly convert type 'System.DateTime' to 'string'
//Calling Procedure
this.txtStartDate.Text = getHireDate(Constants.Database, employeename);
//Actual Procedure
private static string getHireDate(string Database, string employeename)
{
SqlConnection connection = new SqlConnection(Database);
SqlCommand command = new SqlCommand("_uspGetHireDate", connection);
command.CommandType = CommandType.StoredProcedure;
SqlParameter returnValue = new SqlParameter("returnVal", SqlDbType.Int);
returnValue.Direction = ParameterDirection.ReturnValue;
command.Parameters.Add(returnValue);
connection.Open();
command.ExecuteNonQuery();
connection.Close();
//This line throws an error of can not implicitly convert 'System.DateTime' to 'string'
return Convert.ToDateTime(returnValue.Value);
}
//Stored Procedure Being Called
alter procedure [dbo].[_uspGetHireDate]
(
#employeename varchar(100)
)
as
declare #StartDate datetime
set NOCOUNT ON
Set #StartDate = (SELECT CONVERT(VARCHAR(10), HireDate, 101)
FROM tbl_employeeinformation
where hiredate is not null
AND active = 1
AND employeename = #employeename
return #StartDate
Your solution is totally messy. Why are you converting DATE to VARCHAR, then return it as an INT, then converting it as a DateTime and return as STRING???
First of all change your stored procedure to return value standard way. Return DATE, not INT with return:
alter procedure [dbo].[_uspGetHireDate]
#employeename varchar(100)
as
set NOCOUNT ON
SELECT HireDate
FROM tbl_employeeinformation
where hiredate is not null
AND active = 1
AND employeename = #employeename
Then change your method to return DateTime:
private static DateTime getHireDate(string Database, string employeename)
{
SqlConnection connection = new SqlConnection(Database);
SqlCommand command = new SqlCommand("_uspGetHireDate", connection);
command.CommandType = CommandType.StoredProcedure;
connection.Open();
var result = Convert.ToDateTime(command.ExecuteScalar());
connection.Close();
return result;
}
Thanks to #petelids for pointing this out. Change your presentation layer to:
this.txtStartDate.Text = getHireDate(Constants.Database, employeename).ToString("yyyy-MM-dd");
or whatever format that is appropriate. Visualizing data is a work of a presentation layer and not of a business layer. Here you are storing connection string in presentation layer and this is a bit of strange.
Also put your connections, commands etc in using blocks and use try-catch blocks.
Also I have noticed that you are not passing #employeename parameter to your stored procedure.
You are returning DateTime instead of string as intended in function return type
private static string getHireDate(string Database, string employeename)
{
----
return Convert.ToDateTime(returnValue.Value); // Here you are returning datetime but your return type should be string as your function return type is string
}
Trying to get Username by UserId - I have the following stored procedure:
ALTER PROCEDURE [dbo].[GET_UsernameByUserId_SP](
#UserId int,
#ExecutionResult nvarchar(64) OUTPUT
)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
SET #ExecutionResult = (SELECT TOP 1 Username FROM UserProfile WHERE UserId = #Userid);
END
Executed by the following method:
public string CallSpRetStr(String spName, SqlParameter[] sqlParams)
{
string sRet = null;
myCommand.CommandType = CommandType.StoredProcedure;
myCommand.CommandText = spName;
myCommand.Parameters.Clear();
myCommand.Parameters.AddRange(sqlParams);
myCommand.Parameters.AddWithValue("#ExecutionResult", DbType.String);
myCommand.Parameters[myCommand.Parameters.Count - 1].Direction = ParameterDirection.Output;
try
{
if (myConnection.State == ConnectionState.Open)
{
myCommand.ExecuteNonQuery();
}
else
{
OpenConnection();
myCommand.ExecuteNonQuery();
CloseConnection();
}
sRet = myCommand.Parameters["#ExecutionResult"].Value.ToString();
}
catch (Exception ex)
{
CloseConnection();
}
return sRet;
}
Called by the following method:
public string GetUsernameByUserId(int UserId)
{
SqlParameter[] parameters = new SqlParameter[1];
parameters[0] = new SqlParameter("#UserId", UserId);
return dal.CallSpRetStr("GET_UsernameByUserId_SP", parameters);
}
At runtime I get the following error message (caught by the try-catch in CallSpRetStr):
'Error converting datatype nvarchar to int'.
I've been banging my head in the wall for more than hour now, trying crazy things etc.
I have two questions:
1. Does anyone understand what is the problem in all the above?
2. Is anyone aware of a better way to get the username by the userid?
Thanks in advance.
This line is incorrect
myCommand.Parameters.AddWithValue("#ExecutionResult", DbType.String);
should be
myCommand.Parameters.AddWithValue("#ExecutionResult", new string(' ', 64);
The AddWithValue method expects, for its second parameter, the current value for the named parameter but you pass an enum (DbType.String == (int)16). AddWithValue then tries to build a parameter with the datatype corresponding to the value passed and thus creates an integer parameter. Of course this is not acceptable by your stored procedure that expects a nvarchar type
Also I would remove any possible misunderstanding on which parameter is the output one using the return value from the AddWithValue instead of an indexing on the parameter collection
SqlParameter p myCommand.Parameters.AddWithValue("#ExecutionResult", new string(' ', 64);
p.Direction = ParameterDirection.Output;
Notice that we need to create a string of the correct size because AddWithValue doesn't know the expected size of the parameter from the stored procedure and so it creates the parameter with the size equals to the length of the string passed.
I have a DateTime component in my code, and I want to use it for a query in my SQL Server database.
When inserting this component, there seems to be no problem, but when querying for smalldatetime values, I just don't know how to do it. The dataset is always empty.
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "ReadDates";
dataset = new DataSet();
SqlParameter parameter = new SqlParameter("#date", SqlDbType.SmallDateTime);
parameter.Value = DateTime.Now();
cmd.Parameters.Add(parameter);
dataAdapter = new SqlDataAdapter(cmd);
dataAdapter.Fill(dataset);
return dataset;
And this is in my stored procedure:
select * from TableDates
where ValueDate <= #date
So I have no problems running the procedure in SQL Server Management Studio, when entering a parameter in this format: '2000-03-03 04:05:01', but when passing a DateTime, the query is always empty. Any suggestions?
I tried it by using SQL Server 2008 R2 Express.
Here is the example stored procedure i wrote:
CREATE PROCEDURE [dbo].[ShowGivenSmallDateTimeValue]
#givenSmallDateTime smalldatetime
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Simply return the given small date time value back to sender.
SELECT #givenSmallDateTime
END
And here is the C# code to execute the procedure:
var connectionBuilder = new SqlConnectionStringBuilder();
connectionBuilder.DataSource = "localhost\\sqlexpress";
connectionBuilder.IntegratedSecurity = true;
var now = DateTime.UtcNow;
using (var connection = new SqlConnection(connectionBuilder.ConnectionString))
using (var command = new SqlCommand())
{
command.Connection = connection;
command.CommandType = CommandType.StoredProcedure;
command.CommandText = "ShowGivenSmallDateTimeValue";
command.Parameters.Add(new SqlParameter("#givenSmallDateTime", SqlDbType.SmallDateTime) { Value = now });
connection.Open();
var result = (DateTime)command.ExecuteScalar();
var difference = result - now;
Console.WriteLine("Due to the smalldatetime roundings we have a difference of " + difference + ".");
}
And it simply works.
Here's my code for creating the SqlParameter for a Datetime; For SQL Server 2008 we pass the value as datetime2 since SQL will implicity convert from datetime2 to every other date type so long as it is within the range of the target type...
// Default conversion is now DateTime to datetime2. The ADO.Net default is to use datetime.
// This appears to be a safe change as any datetime parameter will accept a datetime2 so long as the value is within the
// range for a datetime. Hence this code is acceptable for both datetime and datetime2 parameters, whereas datetime is not
// (because it doesn't handle the full range of datetime2).
SqlParameter sqlParam = new SqlParameter(name, SqlDbType.DateTime2);
Since Your parameter includes zeros in day and month parts...sql server converts it but doest match to your date.... i.e.,
if DATETIME.now() returns '2000-03-03 04:05:01'... it is casted into 2000-3-3 Without including zeros...so u need to specify zeros also to match your date.
I am currently trying to complete a transaction for a web based app, however;
Procedure or function 'completeTransaction' expects parameter '#dateTime', which was not supplied.
Here is copy of the function.
public static void completeTransaction(string storeCode, string employeeId, DateTime Date, string itemListNoId)
{
using (SqlConnection conn = new SqlConnection("Data Source = ; Initial Catalog =Business ; Integrated Security = true;"))
{
using (SqlCommand command = new SqlCommand("dbo.completeTransaction", conn))
{
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add("#storeCode", SqlDbType.Int).Value = storeCode;
command.Parameters.Add("#employeeId", SqlDbType.Int).Value = employeeId;
**command.Parameters.Add("#Date", SqlDbType.DateTime).Value = Date;**
command.Parameters.Add("#itemListNoId", SqlDbType.Int).Value = itemListNoId;
conn.Open();
command.ExecuteNonQuery();
conn.Close();
}
}
}
My sql table contains the following tables and types (storeCode, INT, employee, INT, Date, DATETIME, itemListNoId, INT)
You do not pass a parameter called #dateTime. It seems like this line
command.Parameters.Add("#Date", SqlDbType.DateTime).Value = Date;
Should be
command.Parameters.Add("#dateTime", SqlDbType.DateTime).Value = Date;
But without the SP source code it is hard to be sure. Keep in mind that SQL Server is complaining about the NAME of the parameter not about its type.
expects parameter '#dateTime'
You passed a parameter named #Date.
the name of the parameter is wrong:
command.Parameters.Add("#dateTime", SqlDbType.DateTime).Value = Date;
If you are getting this and you have passed in the correctly named parameter, check that the CommandType is set to Stored procedure
cmd.CommandType = CommandType.StoredProcedure;
I was seeing these same symptoms spent an embarrassingly long time tracking down how each parameter was getting to the stored proc.
As previous answers have correctly mentioned, most probable reasons for this error are either forgetting to add parameter(s) to the SqlCommand or forgetting to set command's type to CommandType.StoredProcedure
In case you have already set above correctly and still pulling your hair, then this might be the reason.
If you set parameters value to null (e.g. mySQLParam1.Value = valuePassedToMe and if valuePassedToMe is null) then you will get the same error (i.e. Procedure or function '...' expects parameter '...', which was not supplied).
This can be solved by assigning DBNull.Value when the value needs to be null
i.e.
mySQLParam1.Value = valuePassedToMe ?? (object)DBNull.Value;
When you assign null to a parameter ADO.Net converts it to default. Below is an example from SQL Server Profiler.
exec dbo.MyStoredProcedure #mySQLParam1=default,#mySQLParam2=default,#mySQLParam3=default,...
When you assign DBNull.Value the generated SQL becomes:
exec dbo.MyStoredProcedure #mySQLParam1=NULL,#mySQLParam2=NULL,#mySQLParam3=NULL,...