diff --git a/WEBROOT/services/KalenderShow.php b/WEBROOT/services/KalenderShow.php
new file mode 100644
index 0000000..34db822
--- /dev/null
+++ b/WEBROOT/services/KalenderShow.php
@@ -0,0 +1,133 @@
+<?php
+include_once '../controller/LogController.php';
+include_once '../controller/DatabaseConnect.php';
+
+// logging();
+$conn = db_connect();
+
+echo "<h1>Datenbank auslesen um " . date("H:i:s") . "</h1>";
+echo '<br>';
+
+$filter = $_GET['filter'] ?? 'alle';
+
+$customQuery = $_POST['custom_query'] ?? '';
+$useCustom = false;
+
+if ($customQuery) {
+    $forbidden = ['DELETE', 'UPDATE', 'INSERT', 'DROP', 'ALTER', 'TRUNCATE'];
+    $upper = strtoupper($customQuery);
+
+    foreach ($forbidden as $bad) {
+        if (strpos($upper, $bad) !== false) {
+            die("<b style='color:red'>Gefährliche Query blockiert! ($bad gefunden)</b>");
+        }
+    }
+
+    if (stripos($customQuery, "SELECT") !== 0) {
+        die("<b style='color:red'>Nur SELECT-Befehle sind erlaubt!</b>");
+    }
+
+    $sql = $customQuery;
+    $useCustom = true;
+}
+
+if (!$useCustom) {
+    switch ($filter) {
+        case 'Firma':
+            $sql = "
+                SELECT DATUM, EVENT FROM Kalender WHERE EVENT LIKE '%Firma%';
+            ";
+            break;
+
+        case 'Urlaub':
+            $sql = "
+                SELECT DATUM, EVENT FROM Kalender WHERE EVENT LIKE '%Urlaub%';
+            ";
+            break;
+
+        case 'Berufsschule':
+            $sql = "
+                SELECT DATUM, EVENT FROM Kalender WHERE EVENT LIKE '%Berufsschule%';
+            ";
+            break;
+
+        case 'andere':
+            $sql = "
+                SELECT DATUM, EVENT FROM Kalender WHERE EVENT NOT LIKE '%Berufsschule%' AND EVENT NOT LIKE '%Urlaub%' AND EVENT NOT LIKE '%Firma%' ORDER BY DATUM;
+
+            ";
+            break;
+
+        case 'alle':
+        default:
+            $sql = "
+                SELECT DATUM, EVENT FROM Kalender ORDER BY DATUM;
+            ";
+    }
+}
+?>
+
+<form method="GET">
+    <label><b>Log-Filter auswählen:</b></label>
+    <select name="filter" onchange="this.form.submit()">
+        <option value="alle" <?= $filter == 'alle' ? 'selected' : '' ?>>Alle</option>
+        <option value="Firma" <?= $filter == 'Firma' ? 'selected' : '' ?>>Firma</option>
+        <option value="Urlaub" <?= $filter == 'Urlaub' ? 'selected' : '' ?>>Urlaub</option>
+        <option value="Berufsschule" <?= $filter == 'Berufsschule' ? 'selected' : '' ?>>Berufsschule</option>
+        <option value="andere" <?= $filter == 'andere' ? 'selected' : '' ?>>andere</option>
+    </select>
+</form>
+
+<br>
+
+<?php
+
+$daten = [];
+
+if ($erg = $conn->query($sql)) {
+
+    if ($erg->num_rows) {
+        echo "<b>Gefundene Einträge: " . $erg->num_rows . "</b><br><br>";
+    } else {
+        echo "<b>Keine Datensätze gefunden.</b><br><br>";
+    }
+
+    while ($datensatz = $erg->fetch_object()) {
+        $daten[] = $datensatz;
+    }
+
+    $erg->free();
+}
+
+echo "<h2>Ergebnis:</h2>";
+
+if (empty($daten)) {
+    echo "<b>Keine Daten vorhanden.</b>";
+} else {
+
+    echo '<div style="max-width: 100%; overflow-x: auto;">';
+
+    echo '<table border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse; width:100%; font-family:Arial; font-size:14px;">';
+
+    echo "<tr style='background:#f0f0f0; font-weight:bold;'>";
+    foreach ($daten[0] as $spaltenname => $wert) {
+        echo "<th style='text-align:left; padding:6px; word-break:break-word; white-space:normal;'>" . htmlspecialchars($spaltenname ?? '') . "</th>";
+    }
+    echo "</tr>";
+
+    foreach ($daten as $row) {
+        echo "<tr>";
+        foreach ($row as $value) {
+            echo "<td style='padding:6px; word-break:break-word; white-space:normal; max-width:300px;'>" . htmlspecialchars($value ?? '') . "</td>";
+        }
+        echo "</tr>";
+    }
+
+    echo "</table>";
+    echo "</div>";
+}
+
+
+
+exit;
+?>
\ No newline at end of file
diff --git a/WEBROOT/templates/ServicesDashboardButtons.php b/WEBROOT/templates/ServicesDashboardButtons.php
index cc0baf0..037d916 100644
--- a/WEBROOT/templates/ServicesDashboardButtons.php
+++ b/WEBROOT/templates/ServicesDashboardButtons.php
@@ -12,6 +12,7 @@ $buttons = [
         ["name" => "Stundenplan Bruno",                     "link" => "$routing=/services/StundenplanBruno.php",                "color" => $buttoncoloractive],
         ["name" => "Arbeitsberichte Erstellen",             "link" => "$routing=/services/Berichte/Arbeitsberichte/ArbeitsberichteErstellen.php",      "color" => $buttoncoloractive],
         ["name" => "Berufsschulberichte Erstellen",         "link" => "$routing=/services/Berichte/Berufsschulberichte/BerufsschulberichtErstellen.php", "color" => $buttoncoloractive],
+        ["name" => "Kalender",                              "link" => "$routing=/services/KalenderShow.php",                    "color" => $buttoncoloractive],
     ]],
 
     ["section" => "Webserver", "buttons" => [
@@ -21,4 +22,4 @@ $buttons = [
         ["name" => "Blackpi-Webcam",                        "link" => "../../GLOBAL/routes.php/?website=/Webcam/",              "color" => $buttoncolorinactive],
     ]],
 
-];
+];
\ No newline at end of file