System.Data.SQLite

System.Data.SQLite.SQLiteDataReader.RecordsAffected never returns -1 for SELECT statements
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See <a href='https://msdn.microsoft.com/de-de/library/system.data.sqlclient.sqldatareader.recordsaffected%28v=vs.110%29.aspx'>https://msdn.microsoft.com/de-de/library/system.data.sqlclient.sqldatareader.recordsaffected%28v=vs.110%29.aspx</a>
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<i>"The number of rows changed, inserted, or deleted; 0 if no rows were affected or the statement failed; and -1 for SELECT statements."</i>
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But SQLite always returns 0 for SELECTs:

<pre>
// System.Data.SQLite.SQLiteDataReader
public override int RecordsAffected
{
	get
	{
		this.CheckDisposed();
		if (this._rowsAffected >= 0)
		{
			return this._rowsAffected;
		}
		return 0;
	}
}
</pre>

Here is the link to the abstract method:

https://msdn.microsoft.com/en-us/library/system.data.idatareader.recordsaffected%28v=vs.110%29.aspx

This appears to have been the case for quite some time.  It could be changed;
however, it may represent a risk to backward compatibility.

As of the SQLite core library 3.7.4, an argument could be made that using the
sqlite3_stmt_readonly() native API in this context is useful.

Fixed on trunk via check-in [68239f46ea].

The returned value for the RecordsAffected property may be undefined in
some circumstances (i.e. since the value being read is per-connection,
not per-statement); however, it should now return -1 for SELECT statements.

Indeed this does make the command executenonquery deliver a different result (-1) then previous releases (0)