command.executescalar returns null c#

string result = null; object value = get-files.zone.ideScalar(); if (value!...

string result = null; object value = get-files.zone.ideScalar(); if (value!= null) { result = get-files.zone.idng(); } get-files.zone.id(); return result;.

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Open(); newID = (int)insertCommand. To return the id of just inserted row y...

Open(); newID = (int)insertCommand. To return the id of just inserted row you need to select it, because ExecuteScalar() returns.

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return DateTime. My problem is that if the value from the database is null,...

return DateTime. My problem is that if the value from the database is null, the check for "result If I try saying DateTime result = (DateTime)cmd. . a columns type is nullable but C# types do not support to have null values in  Execute oracle stored procedure from C# always returns.

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Return Value. Type: get-files.zone.id The first column of the first row in ...

Return Value. Type: get-files.zone.id The first column of the first row in the result set, or a null reference (Nothing in Visual Basic) if the result set is empty. Returns.

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When I run it manualy, it returns: Running [dbo]. con = new SqlConnection(c...

When I run it manualy, it returns: Running [dbo]. con = new SqlConnection(connectionString); SqlCommand cmd = new k is null, not 2.

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C# ExecuteScalar not returning null MySqlCommand cs = new MySqlCommand(chec...

C# ExecuteScalar not returning null MySqlCommand cs = new MySqlCommand(check_query, get-files.zone.ides_connection); cs.

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What's the best way to check for null on an ExecuteScalar? The followi...

What's the best way to check for null on an ExecuteScalar? The following would fire the command twice: if (get-files.zone.ideScalar()!= null).

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ExecuteScalar(); return noOfRecords!= null; } } . If parameter of the comma...

ExecuteScalar(); return noOfRecords!= null; } } . If parameter of the command are different SqlServer is not able to cache the execution plan.

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ExecuteScalar returns null (ex get-files.zone.id programmer): I am trying t...

ExecuteScalar returns null (ex get-files.zone.id programmer): I am trying to switch over from get-files.zone.id to C# so this is probably a CreateCommand();.

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ExecuteScalar return dbnull. try this: Code: Dim Result As Object = get-fil...

ExecuteScalar return dbnull. try this: Code: Dim Result As Object = get-files.zone.ideScalar If IsDBNull(Result) Then 'HANDLE NULL Else 'HAS A.

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The ExecuteScalar() in C# OleDbCommand Object uses to retrieve a single val...

The ExecuteScalar() in C# OleDbCommand Object uses to retrieve a single value from the Database If the Result Set is empty it will return a NULL reference.

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Executes the query and returns the first column of the first row in the res...

Executes the query and returns the first column of the first row in the result Visual Basic; C#; Delphi; JScript; Managed Extensions for C++; C++/CLI 'Usage Dim instance As VistaDBCommand Dim value As System. ExecuteScalar(); // Test if the result came back as null if(result!= null) return((int) result); return(-1); }.

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I've got the following code cmd = new SqlCommand(strSQL, conn); cmd. y...

I've got the following code cmd = new SqlCommand(strSQL, conn); cmd. you always have to check if the return value is null or not.

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All the three functions i.e. ExecuteNonQuery, ExecuteScalar and using (SqlC...

All the three functions i.e. ExecuteNonQuery, ExecuteScalar and using (SqlCommand cmd = new SqlCommand("INSERT INTO Persons . Return Identity (Auto increment) Column value after record insert in SQL Net with C# and VB. as NULL since there's nothing returned from the UPDATE query.

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This can be achieved through the use of the MySqlCommand object. You will s...

This can be achieved through the use of the MySqlCommand object. You will see how to to insert and delete data. ExecuteScalar - used to return a single value. . ExecuteScalar(); if (result!= null) { int r = get-files.zone.id32(result); Console.

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