共用方式為


SelectScalarExpression Class

Definition

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

[System.Serializable]
public class SelectScalarExpression : Microsoft.SqlServer.TransactSql.ScriptDom.SelectElement
[<System.Serializable>]
type SelectScalarExpression = class
    inherit SelectElement
Public Class SelectScalarExpression
Inherits SelectElement
Inheritance
SelectScalarExpression
Attributes

Constructors

SelectScalarExpression()

Fields

Uninitialized

Constant to indicate and uninitialized token.

(Inherited from TSqlFragment)

Properties

ColumnName

This can be an Identifier or a literal of type AsciiStringLiteral or UnicodeStringLiteral. Optional, may be null.

Expression

A select expression 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 index of the token.

(Inherited from TSqlFragment)
FragmentLength

Defines the number of characters the fragment takes up in the script it was parsed.

(Inherited from TSqlFragment)
LastTokenIndex

Gets or sets the last index of the token.

(Inherited from TSqlFragment)
ScriptTokenStream

Gets or sets the script token stream.

(Inherited from TSqlFragment)
StartColumn

Gets the start column.

(Inherited from TSqlFragment)
StartLine

Gets the start line.

(Inherited from TSqlFragment)
StartOffset

Defines the character offset of fragments starting location in the script it was parsed.

(Inherited from TSqlFragment)

Methods

Accept(TSqlFragmentVisitor)

Accepts visitor

AcceptChildren(TSqlFragmentVisitor)

Accepts visitor for Children

Applies to