How to view LINQ Generated SQL statements?
You could have a look at the Linq-to-SQL Debug Visualizer, or just hover your mouse over your Linq-to-SQL query (tooltip should show generated SQL), or access:
context.GetCommand(query).CommandText
You can always attach something to the .Log property of your DataContext. That will show all the SQL commands as they are sent.
I do this in my base for data access objects and output it to the Visual Studio debug console. As the objects create their DataContext I check it see if its debug and attach a TextWritter helper class like this:
dbDataContext _dB = new dbDataContext();
_dB.CommandTimeout = 5000;
#if DEBUG
_dB.Log = new DebugTextWriter();
#endif
Here is the helper object for output to the debug console:
//utility class for output of TextWriter for the Visual Sudio Debug window
class DebugTextWriter : System.IO.TextWriter
{
public override void Write(char[] buffer, int index, int count)
{
System.Diagnostics.Debug.Write(new String(buffer, index, count));
}
public override void Write(string value)
{
System.Diagnostics.Debug.Write(value);
}
public override Encoding Encoding
{
get { return System.Text.Encoding.Default; }
}
}
Here is what I found using ObjectQuery Method. Using console for testing, you can do the following:
Create an Extension Method as below, then call it. Say Product product, then SQL prints out as product.ToTraceString.
public static class MyExtensions
{
public static string ToTraceString<T>(this IQueryable<T> t)
{
string sql = "";
ObjectQuery<T> oqt = t as ObjectQuery<T>;
if (oqt != null)
sql = oqt.ToTraceString();
return sql;
}
}