CDBVariant Class
TOC
Collapse the table of content
Expand the table of content
The document is archived and information here might be outdated

CDBVariant Class 

Represents a variant data type for the MFC ODBC classes.


class CDBVariant

CDBVariant does not have a base class.

CDBVariant is similar to COleVariant; however, CDBVariant does not use OLE. CDBVariant allows you to store a value without worrying about the value's data type. CDBVariant tracks the data type of the current value, which is stored in a union.

Class CRecordset utilizes CDBVariant objects in three member functions: GetFieldValue, GetBookmark, and SetBookmark. For example, GetFieldValue allows you to dynamically fetch data in a column. Because the data type of the column may not be known at run time, GetFieldValue uses a CDBVariant object to store the column's data.

Header: afxdb.h

This class is not supported in Smart Device projects.

Show:
© 2016 Microsoft