Fatal error: Uncaught mysqli_sql_exception: Unknown column '_NO_' in 'where clause' in /homepages/45/d83308485/htdocs/buch/php/script.11/db_solution.10.00.php:43 Stack trace: #0 /homepages/45/d83308485/htdocs/buch/php/script.11/db_solution.10.00.php(43): mysqli->query() #1 /homepages/45/d83308485/htdocs/buch/prdct/test/.htheader.11.05.php(138): loesungsdatenbank->istOffen() #2 /homepages/45/d83308485/htdocs/buch/prdct/test/.htheader.11.05.php(106): loesungenButton() #3 /homepages/45/d83308485/htdocs/buch/prdct/test/.htheader.11.05.php(49): topLineRechts() #4 /homepages/45/d83308485/htdocs/buch/php/script.11/template_screen.11.01.php(590): include('/homepages/45/d...') #5 /homepages/45/d83308485/htdocs/buch/php/script.11/template_screen.11.01.php(423): template_page->get_Header() #6 /homepages/45/d83308485/htdocs/buch/php/script.11/template.11.01.php(115): template_page->get_body() #7 /homepages/45/d83308485/htdocs/buch/php/script.11/application.11.10.php(1274): template->get_document() #8 /homepages/45/d83308485/htdocs/buch/php/script.11/application.11.10.php(1560): app->OutputToScreen() #9 /homepages/45/d83308485/htdocs/buch/php/script.11/application.11.10.php(1046): app->viewPage() #10 /homepages/45/d83308485/htdocs/buch/php/script.11/application.11.10.php(582): app->__construct() #11 /homepages/45/d83308485/htdocs/buch/prdct/test/index.php(131): include('/homepages/45/d...') #12 {main} thrown in /homepages/45/d83308485/htdocs/buch/php/script.11/db_solution.10.00.php on line 43