sqlcommand

I'm writing a small program in C# that uses SQL to store values into a database at runtime based on input by the user. The only problem is I can't figure out the correct Sql syntax to pass variables into my database. private void button1_Click(object sender, EventArgs e) { int num = 2; using (SqlCeConnection c = new SqlCeConnection( Properties.Settings.Default.rentalDataConnectionString)) { c.Open(); string insertString = @"insert into Buildings(name, street, city, state, zip, numUnits) values('name', 'street', 'city', 'state', @num, 332323)"; SqlCeCommand cmd = new SqlCeCommand(insertString,

From the .NET environment can I get access to the full SQL string that is generated by a SqlCommand object? Note: The full SQL string shows up in Intellisense hover, in VisualStudio, while in debug mode. I'm willing to use reflection techniques if I must. I'm sure somebody here knows a way to get at it. Update 1 : I'm calling a stored procedure having parameters with cmd.CommandType = CommandType.StoredProcedure and am trying to acquire the full SQL generated and run. I wonder if the cmd. Prepare() method might not prove useful in this circumstance, if it might store the full string in a state

When using calling the SqlCommand.ExecuteReader() method, ReSharper tells me I have a possible NullReference exception when I use the SqlDataReader object afterwards. So with the following code: using (SqlConnection connection = GetConnection()) { using (SqlCommand cmd = connection.CreateCommand()) { cmd.CommandText = ; //snip using (SqlDataReader reader = cmd.ExecuteReader()) { while (reader.Read()) { //snip } } } } The while (reader.Read()) line is underlined. My question is when would the reader object ever be null? I've never come across it and the documentation doesn't mention that it

I'm building a custom db deployment utility, I need to read text files containing sql scripts and execute them against the database. Pretty easy stuff, so far so good. However I've encountered a snag, the contents of the file are read successfully and entirely, but once passed into the SqlCommand and then executed with SqlCommand.ExecuteNonQuery only part of the script is executed. I fired up Profiler and confirmed that my code is not passing all of the script. private void ExecuteScript(string cmd, SqlConnection sqlConn, SqlTransaction trans) { SqlCommand sqlCmd = new SqlCommand(cmd, sqlConn,

What I am trying to do is create some arbitrary sql command with parameters, set the values and types of the parameters, and then return the parsed sql command - with parameters included. I will not be directly running this command against a sql database, so no connection should be necessary. So if I ran the example program below, I would hope to see the following text (or something similar): WITH SomeTable (SomeColumn) AS ( SELECT N':)' UNION ALL SELECT N'>:o' UNION ALL SELECT N'^_^' ) SELECT SomeColumn FROM SomeTable And the sample program is: using System; using System.Data; using System

Which one would be better in executing an insert statement for ms-sql database: Sql DataAdapter or SQL Command Object? Which of them would be better, while inserting only one row and while inserting multiple rows ? A simple example of code usage: SQL Command string query = "insert into Table1(col1,col2,col3) values (@value1,@value2,@value3)"; int i; SqlCommand cmd = new SqlCommand(query, connection); // add parameters... cmd.Parameters.Add("@value1",SqlDbType.VarChar).Value=txtBox1.Text; cmd.Parameters.Add("@value2",SqlDbType.VarChar).Value=txtBox2.Text; cmd.Parameters.Add("@value3",SqlDbType