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。