Function odbc_sys::SQLDescribeParam

pub unsafe extern "system" fn SQLDescribeParam(
    statement_handle: HStmt, 
    parameter_number: USmallInt, 
    data_type_ptr: *mut SqlDataType, 
    parameter_size_ptr: *mut ULen, 
    decimal_digits_ptr: *mut SmallInt, 
    nullable_ptr: *mut SmallInt
) -> SqlReturn

Returns the description of a parameter marker associated with a prepared SQL statement. This information is also available in the fields of the IPD.

Returns

SUCCESS, SUCCESS_WITH_INFO, SQL_STILL_EXECUTING, ERROR, or INVALID_HANDLE.