Alter SQL Server Examples

SQL Server > DDL > Alter

Alter Table

Modifies a table definition by altering, adding, or dropping columns and constraints.

Examples:

• Add new column to a table

    ALTER TABLE dbo.TABLE_NAME ADD FIELD_NAME nvarchar(MAX) NULL

• Add computed column

ALTER LOGIN

Changes the properties of a SQL Server login account. Examples:    1.Change user password       ALTER LOGIN sa WITH PASSWORD = 'your_password';    2.Enable user       ALTER LOGIN sa ENABLE;

CREATE TABLE SQL Server

SQL Server > SQL Statements > CREATE TABLE

CREATE TABLE statement creates a table in a database.

Syntax

CREATE TABLE table_name
(
   column_name data_type(size),
   ...
);

Example

CREATE TABLE [dbo].[Table1](

       [ID] [bigint] IDENTITY(1,1) NOT NULL,
       [Name] [nvarchar](50) NOT NULL,
       [Password] [nvarchar](50) NOT NULL,
 CONSTRAINT [PK_users1] PRIMARY KEY CLUSTERED
(
       [ID] ASC
)
) ON [PRIMARY]
GO

Putting Quotation Marks in a String C#

C# > String > Quote

const string quote = "\"";
string str = "Topic: " + quote + "Putting Quotation Marks in a String" + quote;

Disable Spin Editor GridViewDecimalColumn RadGridView

Telerik > Windows Forms > > RadGridView > Disable Spin Editor


GridSpinEditor represents a spin editor in RadGridView.

Example: How to disable GridSpinEditor in RadGridView

  Private Sub RadGrid_CellEditorInitialized(sender As Object, e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles Me.CellEditorInitialized

        Dim spinEditor As GridSpinEditor = TryCast(Me.ActiveEditor, GridSpinEditor)
        If spinEditor IsNot Nothing Then
            Dim element As GridSpinEditorElement = spinEditor.EditorElement
            element.ShowUpDownButtons = False
            element.InterceptArrowKeys = False
            element.EnableMouseWheel = False
        End If
    End Sub

Arrow keys not trigger VB NET

VB.NET > Form > Methods > ProcessCmdKey

ProcessCmdKey method processes a command key.

Example:
Use ProcessCmdKey to catch arrow keys (arrow keys not trigger VB NET in form events)

Solution:

   

Protected Overrides Function ProcessCmdKey(ByRef msg As Message, ByVal keydata As Keys) As Boolean

        If keydata = Keys.Right Or keydata = Keys.Left Or keydata = Keys.Up Or keydata = Keys.Down Then
            OnKeyDown(New KeyEventArgs(keydata))
            ProcessCmdKey = True
        Else
            ProcessCmdKey = MyBase.ProcessCmdKey(msg, keydata)
        End If
    End Function

Private Sub RunForm_KeyDown(sender As System.Object, e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown

        If e.KeyCode = Keys.Right Then
        End If
End Sub