Function odbc_sys::SQLNumResultCols

pub unsafe extern fn SQLNumResultCols(statement_handle: SQLHSTMT,
                                      column_count_ptr: *mut SQLSMALLINT)
                                      -> SQLRETURN

Returns the number of columns in a result set

Returns

SQL_SUCCESS, SQL_SUCCESS_WITH_INFO, SQL_ERROR, SQL_INVALID_HANDLE or SQL_STILL_EXECUTING