Expression Property (MetadataField)

Gets or sets the SQL expression string for a virtual metadata field.

Syntax

'Declaration
 
Public Property Expression As System.String

'Usage
 
Dim instance As MetadataField
Dim value As System.String
 
instance.Expression = value
 
value = instance.Expression

public System.string Expression {get; set;}

public: __property System.string* get_Expression();
public: __property void set_Expression( 
   System.string* value
);

Valid SQL expression string to be used as replacement for this field in result SQL query text.

Remarks

Firtual fields are usually defined to hide complex SQL expressions or correlated sub-queries from the end-user.