SelectScalarExpression 類別

Represents the column element that is used right after the select keyword.

繼承階層

System.Object
  Microsoft.SqlServer.TransactSql.ScriptDom.TSqlFragment
    Microsoft.SqlServer.TransactSql.ScriptDom.SelectElement
      Microsoft.SqlServer.TransactSql.ScriptDom.SelectScalarExpression

命名空間：  Microsoft.SqlServer.TransactSql.ScriptDom
組件：  Microsoft.SqlServer.TransactSql.ScriptDom (在 Microsoft.SqlServer.TransactSql.ScriptDom.dll 中)

語法

'宣告
<SerializableAttribute> _
Public Class SelectScalarExpression _
    Inherits SelectElement
'用途
Dim instance As SelectScalarExpression

[SerializableAttribute]
public class SelectScalarExpression : SelectElement

[SerializableAttribute]
public ref class SelectScalarExpression : public SelectElement

[<SerializableAttribute>]
type SelectScalarExpression =  
    class 
        inherit SelectElement 
    end

public class SelectScalarExpression extends SelectElement

SelectScalarExpression 型別公開下列成員。

建構函式

	名稱	說明
	SelectScalarExpression	Initializes a new instance of the SelectScalarExpression class.

上層

屬性

	名稱	說明
	ColumnName	Gets or sets an Identifier or a literal of type AsciiStringLiteral or UnicodeStringLiteral. Optional, may be nullnull 參考 (在 Visual Basic 中為 Nothing).
	Expression	Gets or sets a select expression that can be any expression, if this is non-null then this select expression is a regular expression. At present this AST class expresses either an expression or a wildcard. Because a SelectExpressions can do so much more, we may want to go to a derivation approach, where this class would be a base -- or there may be another more elegant approach. For now, this is a basic design to support SELECT * FROM foo.
	FirstTokenIndex	Gets or sets the first token index. (繼承自 TSqlFragment。)
	FragmentLength	Gets the fragment length. (繼承自 TSqlFragment。)
	LastTokenIndex	Gets or sets the last token index. (繼承自 TSqlFragment。)
	ScriptTokenStream	Gets or sets a list of token streams. (繼承自 TSqlFragment。)
	StartColumn	Gets the starting column. (繼承自 TSqlFragment。)
	StartLine	Gets the starting line. (繼承自 TSqlFragment。)
	StartOffset	Gets the fragment start offset value. (繼承自 TSqlFragment。)

上層

方法

	名稱	說明
	Accept	Accepts visitor. (覆寫 TSqlFragment.Accept(TSqlFragmentVisitor)。)
	AcceptChildren	Accepts visitor for Children. (覆寫 SelectElement.AcceptChildren(TSqlFragmentVisitor)。)
	Equals	(繼承自 Object。)
	Finalize	(繼承自 Object。)
	GetHashCode	(繼承自 Object。)
	GetType	(繼承自 Object。)
	MemberwiseClone	(繼承自 Object。)
	ToString	(繼承自 Object。)

上層

執行緒安全性

這個型別的任何公用 static (在 Visual Basic 中為 Shared) 成員都是執行緒安全的。並不是所有的執行個體成員都保證可以用於所有的執行緒。

請參閱

參考

Microsoft.SqlServer.TransactSql.ScriptDom 命名空間