diff --git a/db.php b/db.php
index 248cab1..dc99222 100644
--- a/db.php
+++ b/db.php
@@ -30,8 +30,10 @@ function getDb(): PDO {
 
 function initDatabase(): void {
     $db = getDb();
-    $db->exec("
-        CREATE TABLE IF NOT EXISTS companies (
+
+    // Jokainen CREATE TABLE omana exec()-kutsuna — MySQL/PDO ei tue useaa lausetta kerralla
+    $tables = [
+        "CREATE TABLE IF NOT EXISTS companies (
             id VARCHAR(50) PRIMARY KEY,
             nimi VARCHAR(255) NOT NULL,
             luotu DATETIME,
@@ -41,17 +43,17 @@ function initDatabase(): void {
             logo_file VARCHAR(255) DEFAULT '',
             api_key VARCHAR(64) DEFAULT '',
             cors_origins TEXT DEFAULT ''
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS company_domains (
+        "CREATE TABLE IF NOT EXISTS company_domains (
             id INT AUTO_INCREMENT PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             domain VARCHAR(255) NOT NULL,
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             UNIQUE KEY udx_domain (domain)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS users (
+        "CREATE TABLE IF NOT EXISTS users (
             id VARCHAR(20) PRIMARY KEY,
             username VARCHAR(100) NOT NULL UNIQUE,
             password_hash VARCHAR(255) NOT NULL,
@@ -59,46 +61,46 @@ function initDatabase(): void {
             role ENUM('admin','user') DEFAULT 'user',
             email VARCHAR(255) DEFAULT '',
             luotu DATETIME
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS user_companies (
+        "CREATE TABLE IF NOT EXISTS user_companies (
             user_id VARCHAR(20) NOT NULL,
             company_id VARCHAR(50) NOT NULL,
             PRIMARY KEY (user_id, company_id),
             FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE
-        ) ENGINE=InnoDB;
+        ) ENGINE=InnoDB",
 
-        CREATE TABLE IF NOT EXISTS user_signatures (
+        "CREATE TABLE IF NOT EXISTS user_signatures (
             id INT AUTO_INCREMENT PRIMARY KEY,
             user_id VARCHAR(20) NOT NULL,
             mailbox_id VARCHAR(20) NOT NULL,
             signature TEXT,
             FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
             UNIQUE KEY udx_user_mailbox (user_id, mailbox_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS config (
+        "CREATE TABLE IF NOT EXISTS config (
             config_key VARCHAR(100) PRIMARY KEY,
             config_value TEXT
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS reset_tokens (
+        "CREATE TABLE IF NOT EXISTS reset_tokens (
             id INT AUTO_INCREMENT PRIMARY KEY,
             user_id VARCHAR(20) NOT NULL,
             token VARCHAR(64) NOT NULL UNIQUE,
             created_at DATETIME NOT NULL,
             FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
-        ) ENGINE=InnoDB;
+        ) ENGINE=InnoDB",
 
-        CREATE TABLE IF NOT EXISTS login_attempts (
+        "CREATE TABLE IF NOT EXISTS login_attempts (
             id INT AUTO_INCREMENT PRIMARY KEY,
             ip VARCHAR(45) NOT NULL,
             attempted_at DATETIME NOT NULL,
             INDEX idx_ip_time (ip, attempted_at)
-        ) ENGINE=InnoDB;
+        ) ENGINE=InnoDB",
 
-        CREATE TABLE IF NOT EXISTS customers (
+        "CREATE TABLE IF NOT EXISTS customers (
             id VARCHAR(20) PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             yritys VARCHAR(255),
@@ -118,9 +120,9 @@ function initDatabase(): void {
             muokkaaja VARCHAR(100) DEFAULT '',
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             INDEX idx_company (company_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS customer_connections (
+        "CREATE TABLE IF NOT EXISTS customer_connections (
             id INT AUTO_INCREMENT PRIMARY KEY,
             customer_id VARCHAR(20) NOT NULL,
             asennusosoite VARCHAR(255) DEFAULT '',
@@ -131,9 +133,9 @@ function initDatabase(): void {
             sopimuskausi VARCHAR(100) DEFAULT '',
             alkupvm VARCHAR(20) DEFAULT '',
             FOREIGN KEY (customer_id) REFERENCES customers(id) ON DELETE CASCADE
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS leads (
+        "CREATE TABLE IF NOT EXISTS leads (
             id VARCHAR(20) PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             yritys VARCHAR(255),
@@ -150,9 +152,9 @@ function initDatabase(): void {
             muokkaaja VARCHAR(100) DEFAULT '',
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             INDEX idx_company (company_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS tickets (
+        "CREATE TABLE IF NOT EXISTS tickets (
             id VARCHAR(20) PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             subject VARCHAR(500),
@@ -172,9 +174,9 @@ function initDatabase(): void {
             INDEX idx_company (company_id),
             INDEX idx_status (status),
             INDEX idx_message_id (message_id(255))
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS ticket_messages (
+        "CREATE TABLE IF NOT EXISTS ticket_messages (
             id VARCHAR(20) PRIMARY KEY,
             ticket_id VARCHAR(20) NOT NULL,
             type VARCHAR(20) NOT NULL,
@@ -185,25 +187,25 @@ function initDatabase(): void {
             message_id VARCHAR(500) DEFAULT '',
             FOREIGN KEY (ticket_id) REFERENCES tickets(id) ON DELETE CASCADE,
             INDEX idx_ticket (ticket_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS ticket_tags (
+        "CREATE TABLE IF NOT EXISTS ticket_tags (
             ticket_id VARCHAR(20) NOT NULL,
             tag VARCHAR(100) NOT NULL,
             PRIMARY KEY (ticket_id, tag),
             FOREIGN KEY (ticket_id) REFERENCES tickets(id) ON DELETE CASCADE
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS archives (
+        "CREATE TABLE IF NOT EXISTS archives (
             id VARCHAR(20) PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             data JSON NOT NULL,
             archived_at DATETIME DEFAULT CURRENT_TIMESTAMP,
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             INDEX idx_company (company_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS changelog (
+        "CREATE TABLE IF NOT EXISTS changelog (
             id VARCHAR(20) PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             timestamp DATETIME NOT NULL,
@@ -214,9 +216,9 @@ function initDatabase(): void {
             details TEXT,
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             INDEX idx_company_time (company_id, timestamp)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS mailboxes (
+        "CREATE TABLE IF NOT EXISTS mailboxes (
             id VARCHAR(20) PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             nimi VARCHAR(255),
@@ -230,9 +232,9 @@ function initDatabase(): void {
             aktiivinen BOOLEAN DEFAULT TRUE,
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             INDEX idx_company (company_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS ticket_rules (
+        "CREATE TABLE IF NOT EXISTS ticket_rules (
             id VARCHAR(20) PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             name VARCHAR(255),
@@ -245,9 +247,9 @@ function initDatabase(): void {
             auto_close_days INT DEFAULT 0,
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             INDEX idx_company (company_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 
-        CREATE TABLE IF NOT EXISTS files (
+        "CREATE TABLE IF NOT EXISTS files (
             id INT AUTO_INCREMENT PRIMARY KEY,
             company_id VARCHAR(50) NOT NULL,
             customer_id VARCHAR(20) NOT NULL,
@@ -258,8 +260,16 @@ function initDatabase(): void {
             uploaded_by VARCHAR(100),
             FOREIGN KEY (company_id) REFERENCES companies(id) ON DELETE CASCADE,
             INDEX idx_company_customer (company_id, customer_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
-    ");
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
+    ];
+
+    foreach ($tables as $i => $sql) {
+        try {
+            $db->exec($sql);
+        } catch (PDOException $e) {
+            throw new RuntimeException("Taulun luonti epäonnistui (taulu #" . ($i+1) . "): " . $e->getMessage());
+        }
+    }
 }
 
 // ==================== YRITYKSET ====================