How to read a bit value from DB with SqlDataReader? How to read a varbinary(max) datatype from database how to read data from the datatable How to retrieve the date from sql server using C# asp.net How to return a primary key from a stored procedure that performs an insert ...
[SQL Server Native Client 11.0]Connection is busy with results for another command [closed] [win 10, c#] Interop - Generic way to know if a window is Minimized, Maximized or Normal? [Y/N] Prompt C# \r\n not working! \t is not working but \n does #C code to Read the sectors...
there may be something wrong there.That error is being generated from SQL. In other words there ...
static void GetSchemaInfo(SqlConnection connection) { using (connection) { SqlCommand command = new( "SELECT CategoryID, CategoryName FROM Categories;", connection); connection.Open(); SqlDataReader reader = command.ExecuteReader(); DataTable schemaTable = reader.GetSchemaTable(); forea...
//Use a DataReader object to connect to the Pubs database. cnn.Open(); sql = "select au_id,au_lName,au_fname,phone,address,city,state,zip,contract from authors"; SqlCommand cmd = new SqlCommand(sql, cnn); SqlDataReader dr;
I assume the network buffers aren't big enough to hold 30MB of data, so what does .NET do here? Is the result of the SELECT squirreled away somewhere for the SQLDataReader to nibble off a row every time Read() advances the pointer? Or does it go back to the database?
SqlDataReader.ReadInternal(Boolean setTimeout) at System.Data.SqlClient.SqlDataReader.Read() at ...
Learn more about how to deserialize instance data properties. You do this when you want to manually inspect the state of a persisted workflow instance.
Data Reader is used to read the data from the data base. Here is a sample code which demonstrate the process using data reader Con = new SqlConnection("Server=(local)\\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI"); ...
Using the FORCESEEK query hint as a last resort fails to produce a plan at all. When the parameter type is specified as SqlDbType.VarChar rather than making ADO.NET guess the data type, the response of such a query drops from multiple seconds (at best) to milliseconds. Parameter Length ...