The GetColumnSQLVARIANTToString method converts a sql_variant column to a string and returns its value.
object.GetColumnSQLVARIANTToString(
Row ,
Column ,
ObjName ) as String
object
Expression that evaluates to an object in the Applies To list
Row
Long integer that identifies a row by ordinal position
Column
Long integer that identifies a column by ordinal position
ObjName
String that specifies a table or view name
HRESULT GetColumnSQLVARIANTToString(
long lRow,
long lColumn,
SQLDMO_LPCSTR ObjName,
SQLDMO_LPBSTR pRetVal);
Note SQL-DMO strings are always returned as OLE BSTR objects. A C/C++ application obtains a reference to the string. The application must release the reference using SysFreeString.
GetColumnSQLVARIANTToString can be useful in applications designed to display the contents of sql_variant columns, such as a Web site.
Columns with underlying numeric, decimal, or datetime data types cannot be converted to strings using the GetColumnSQLVARIANTToString method.
Note If an application calls GetColumnSQLVARIANTToString on an instance of SQL Server version 7.0, the constant, SQLDMO_E_SQL80ONLY, and the message "This property or method requires Microsoft SQL Server 2000" are returned.