diff --git a/src/database.cpp b/src/database.cpp
index 5479f38..ab994ab 100644
--- a/src/database.cpp
+++ b/src/database.cpp
@@ -78,9 +78,39 @@ Database::FieldList Database::execute(const std::string& stmtName,
         if (params.empty()) {
             res = txn.exec_prepared(stmtName);
         } else {
-            pqxx::params p;
-            for (const auto& v : params) p.append(v);
-            res = txn.exec_prepared(stmtName, p);
+            // Kompatibilität für libpqxx 6.x (Ubuntu 22) und 7.x (OpenSUSE Tumbleweed)
+            #if PQXX_VERSION_MAJOR >= 7
+                pqxx::params p;
+                for (const auto& v : params) p.append(v);
+                res = txn.exec_prepared(stmtName, p);
+            #else
+                // Für libpqxx 6.x - verwende exec_params mit variadic template
+                if (params.size() == 0) {
+                    res = txn.exec_prepared(stmtName);
+                } else if (params.size() == 1) {
+                    res = txn.exec_prepared(stmtName, params[0]);
+                } else if (params.size() == 2) {
+                    res = txn.exec_prepared(stmtName, params[0], params[1]);
+                } else if (params.size() == 3) {
+                    res = txn.exec_prepared(stmtName, params[0], params[1], params[2]);
+                } else if (params.size() == 4) {
+                    res = txn.exec_prepared(stmtName, params[0], params[1], params[2], params[3]);
+                } else if (params.size() == 5) {
+                    res = txn.exec_prepared(stmtName, params[0], params[1], params[2], params[3], params[4]);
+                } else {
+                    // Für mehr als 5 Parameter, verwende exec_params
+                    std::string sql = "EXECUTE " + stmtName;
+                    if (!params.empty()) {
+                        sql += "(";
+                        for (size_t i = 0; i < params.size(); ++i) {
+                            if (i > 0) sql += ", ";
+                            sql += "$" + std::to_string(i + 1);
+                        }
+                        sql += ")";
+                    }
+                    res = txn.exec_params(sql, params);
+                }
+            #endif
         }
 
         FieldList out;
diff --git a/upgrade-libpqxx-ubuntu22.sh b/upgrade-libpqxx-ubuntu22.sh
new file mode 100755
index 0000000..57201a9
--- /dev/null
+++ b/upgrade-libpqxx-ubuntu22.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+
+# Upgrade libpqxx to version 7.x on Ubuntu 22
+# Führen Sie dieses Script auf dem Ubuntu 22 Server aus
+
+set -euo pipefail
+
+# Farben
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+log_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
+log_success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
+log_warning() { echo -e "${YELLOW}[WARNING]${NC} $1"; }
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+
+log_info "Upgrade libpqxx auf Ubuntu 22 für bessere C++23 Kompatibilität..."
+
+# Prüfe aktuelle Version
+log_info "Aktuelle libpqxx Version:"
+dpkg -l | grep libpqxx || log_info "libpqxx nicht installiert"
+
+# Installiere Build-Dependencies
+log_info "Installiere Build-Dependencies..."
+apt update
+apt install -y \
+    build-essential \
+    cmake \
+    pkg-config \
+    git \
+    libpq-dev \
+    postgresql-server-dev-14
+
+# Lade libpqxx 7.x herunter und kompiliere
+log_info "Lade libpqxx 7.x herunter..."
+cd /tmp
+if [ -d "libpqxx" ]; then
+    rm -rf libpqxx
+fi
+
+git clone https://github.com/jtv/libpqxx.git
+cd libpqxx
+
+# Checkout Version 7.9.2 (stabile Version)
+git checkout 7.9.2
+
+# Kompiliere und installiere
+log_info "Kompiliere libpqxx 7.x..."
+mkdir build
+cd build
+cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local
+make -j$(nproc)
+make install
+
+# Update library cache
+ldconfig
+
+log_success "libpqxx 7.x erfolgreich installiert!"
+
+# Prüfe neue Version
+log_info "Neue libpqxx Version:"
+pkg-config --modversion libpqxx
+
+log_info "Teste Kompilierung..."
+cat > /tmp/test_pqxx.cpp << 'EOF'
+#include <pqxx/pqxx>
+#include <iostream>
+
+int main() {
+    std::cout << "libpqxx Version: " << PQXX_VERSION << std::endl;
+    std::cout << "Major Version: " << PQXX_VERSION_MAJOR << std::endl;
+    return 0;
+}
+EOF
+
+if g++ -o /tmp/test_pqxx /tmp/test_pqxx.cpp -lpqxx -lpq; then
+    log_success "Kompilierung erfolgreich!"
+    /tmp/test_pqxx
+    rm -f /tmp/test_pqxx /tmp/test_pqxx.cpp
+else
+    log_error "Kompilierung fehlgeschlagen!"
+    rm -f /tmp/test_pqxx /tmp/test_pqxx.cpp
+fi
+
+log_success "libpqxx Upgrade abgeschlossen!"
+log_info "Sie können jetzt das Projekt mit der neuesten libpqxx Version kompilieren."