short AddHostVariable(long QueryID, short Type, const VARIANT& Value)
Description
This function applies the data in Value to a variable in the static SQL statement initialized with QueryID. Call this function for each variable in the statement. QMF for Windows makes no attempt to match values to variables, so you should call this function in the same order as the variables in the SQL statement.
Parameters
Name | Description |
---|---|
QueryID | The ID of the query, as returned from InitializeStaticQuery(). |
Type |
The SQL data type of the value to be passed to the database server. This value influences the conversion of Value from a VARIANT data type to the value actually passed. The valid values for Type include:
|
Value | The data value to substitute in the statement. To specify a null value, set the variant type to VT_EMPTY. |
Return Value
The return value will be zero if successful or non-zero if unsuccessful. If the return value is non-zero, you can call GetLastErrorString() or GetLastErrorType() to get additional error information.