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Isidro Padilla
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I can not dropping view with SMO
Apr 22 2020 7:33 AM
I can not Dropping View with SMO
Let's see, after googling a lot and going to 2 of the most
important C # forums I still don't understand why to delete
a View from a SQL Server database I have to create it and
then delete it, on the contrary, it won't delete a view
existing in any of the ways I've tried.
There must be some reason for it that I cannot understand.
On the other hand, what sense does what Microsotf does in
its example of the following link where it creates it and
immediately deletes it. Something that I consider absurd.
Link: https://docs.microsoft.com/ca-es/sql/relational-databases/server-management-objects-smo/tasks/creating-altering-and-removing-views?view=sql-server-2017&viewFallbackFrom=aps-pdw-2016-au7
private void BtnBorrarVista_Click(object sender, EventArgs e)
{
try
{
if (MessageBox.Show("Está intentando borrar la Vista " + textBoxBorrarVista.Text + " ¿Está seguro de que quiere eliminarla?", "¡Atención!", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
m_Server = new Server(cmbServerName.Text);
if (!string.IsNullOrWhiteSpace(cmbServerName.Text))
{
if (m_Server != null && !string.IsNullOrWhiteSpace(cmbDbName.Text))
{
Database myNewDatabase = m_Server.Databases[cmbDbName.Text];
if (myNewDatabase != null)
{
Microsoft.SqlServer.Management.Smo.View view;
view = new Microsoft.SqlServer.Management.Smo.View(myNewDatabase, textBoxBorrarVista.Text, "Sales");
//=================Create view. Why? ===========================
view.TextHeader = "CREATE VIEW [Sales]." + textBoxBorrarVista.Text + " AS";
view.TextBody = "SELECT h.SalesOrderID, d.OrderQty FROM Sales.SalesOrderHeader AS h INNER JOIN Sales.SalesOrderDetail AS d ON h.SalesOrderID = d.SalesOrderID";
//Create the view on the instance of SQL Server.
view.Create();
MessageBox.Show("La vista de la 'Tabla' 'Sales' de " + cmbDbName.Text + " se creó satisfactoriamente ");
//==============================================================
//Checking view
MessageBox.Show("Check view: " + view);
if (view != null)
{
view.Drop();
MessageBox.Show("La Vista " + textBoxBorrarVista.Text + " se borró con éxito");
}
}
}
}
}
else
{
MessageBox.Show("Operación abortada. La Vista " + textBoxBorrarVista.Text + " no se ha borrado");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());
}
}
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