diff --git a/DataStorage/Database/Query/Builder.php b/DataStorage/Database/Query/Builder.php
index dd3b731a5..b9b953093 100755
--- a/DataStorage/Database/Query/Builder.php
+++ b/DataStorage/Database/Query/Builder.php
@@ -1027,7 +1027,7 @@ class Builder extends BuilderAbstract
     /**
      * Update columns.
      *
-     * @param mixed ...$tables Column names to update
+     * @param mixed ...$columns Column names to update
      *
      * @return Builder
      *
@@ -1036,7 +1036,7 @@ class Builder extends BuilderAbstract
      *
      * @since 1.0.0
      */
-    public function update(mixed ...$tables) : self
+    public function update(mixed ...$columns) : self
     {
         if ($this->isReadOnly) {
             throw new \Exception();
@@ -1044,11 +1044,11 @@ class Builder extends BuilderAbstract
 
         $this->type = QueryType::UPDATE;
 
-        /** @var mixed[] $tables */
+        /** @var mixed[] $columns */
         /** @var mixed $table */
-        foreach ($tables as $table) {
-            if (\is_string($table) || $table instanceof self) {
-                $this->updates[] = $table;
+        foreach ($columns as $column) {
+            if (\is_string($column) || $column instanceof self) {
+                $this->updates[] = $column;
             } else {
                 throw new \InvalidArgumentException();
             }
diff --git a/Utils/IO/Csv/CsvDatabaseMapper.php b/Utils/IO/Csv/CsvDatabaseMapper.php
new file mode 100644
index 000000000..99680cf45
--- /dev/null
+++ b/Utils/IO/Csv/CsvDatabaseMapper.php
@@ -0,0 +1,176 @@
+<?php
+/**
+ * Jingga
+ *
+ * PHP Version 8.1
+ *
+ * @package   phpOMS\Utils\IO\Csv
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
+declare(strict_types=1);
+
+namespace phpOMS\Utils\IO\Csv;
+
+use phpOMS\DataStorage\Database\Connection\ConnectionAbstract;
+use phpOMS\DataStorage\Database\Query\Builder;
+use phpOMS\Utils\IO\IODatabaseMapper;
+use phpOMS\Utils\StringUtils;
+
+/**
+ * Csv database mapper.
+ *
+ * @package phpOMS\Utils\IO\Csv
+ * @license OMS License 2.0
+ * @link    https://jingga.app
+ * @since   1.0.0
+ */
+class CsvDatabaseMapper implements IODatabaseMapper
+{
+    /**
+     * Database connection
+     *
+     * @var ConnectionAbstract
+     * @since 1.0.0
+     */
+    private ConnectionAbstract $con;
+
+    /**
+     * Path to source or destination
+     *
+     * @var string
+     * @since 1.0.0
+     */
+    private string $path = '';
+
+    /**
+     * Constructor.
+     *
+     * @param ConnectionAbstract $con  Database connection
+     * @param string             $path File path
+     *
+     * @since 1.0.0
+     */
+    public function __construct(ConnectionAbstract $con, string $path)
+    {
+        $this->con  = $con;
+        $this->path = $path;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function insert() : void
+    {
+        $fp = \fopen($this->path, 'r');
+        if ($fp === false) {
+            return;
+        }
+
+        $table  = \basename($this->path, '.csv');
+        $titles = [];
+
+        // get column titles
+        $titles[] = \fgetcsv($fp, 4096);
+
+        $columns = \count($titles);
+        if ($columns === 0) {
+            return;
+        }
+
+        // insert data
+        $query = new Builder($this->con);
+        $query->insert(...$titles)->into($table);
+
+        while (($cells = \fgetcsv($fp)) !== false) {
+            $query->values(...$cells);
+        }
+
+        $query->execute();
+
+        \fclose($fp);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function select(array $queries) : void
+    {
+        $fp = \fopen($this->path, 'r+');
+        if ($fp === false) {
+            return;
+        }
+
+        foreach ($queries as $key => $query) {
+            $results = $query->execute()?->fetchAll(\PDO::FETCH_ASSOC);
+            if (!\is_array($results)) {
+                continue;
+            }
+
+            if ($key > 0) {
+                return;
+            }
+
+            $rows = \count($results);
+            if ($rows < 1) {
+                break;
+            }
+
+            $colCount = \count($results[0]);
+            $columns  = \array_keys($results[0]);
+
+            // set column titles
+            for ($i = 1; $i <= $colCount; ++$i) {
+                \fputcsv($fp, $columns);
+            }
+
+            // set data
+            foreach ($results as $result) {
+                \fputcsv($fp, $result);
+            }
+        }
+
+        \fclose($fp);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function update() : void
+    {
+        $fp = \fopen($this->path, 'r+');
+        if ($fp === false) {
+            return;
+        }
+
+        $table  = \basename($this->path, '.csv');
+        $titles = [];
+
+        // get column titles
+        $titles[] = \fgetcsv($fp, 4096);
+
+        $columns = \count($titles);
+        if ($columns === 0) {
+            return;
+        }
+
+        $idCol = (string) \array_shift($titles);
+
+        // update data
+        while (($cells = \fgetcsv($fp)) !== false) {
+            $query = new Builder($this->con);
+            $query->update($titles)->into($table);
+
+            for ($j = 2; $j <= $columns; ++$j) {
+                $query->sets((string) $titles[$j - 2], $cells[$j - 1]);
+            }
+
+            $query->where($idCol, '=', $cells[0]);
+            $query->execute();
+        }
+
+        \fclose($fp);
+    }
+}
diff --git a/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php b/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php
index 86633c137..2c33deaf5 100755
--- a/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php
+++ b/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php
@@ -133,7 +133,7 @@ class SpreadsheetDatabaseMapper implements IODatabaseMapper
 
         foreach ($queries as $key => $query) {
             $results = $query->execute()?->fetchAll(\PDO::FETCH_ASSOC);
-            if ($results === null) {
+            if (!\is_array($results)) {
                 continue;
             }
 
@@ -142,7 +142,7 @@ class SpreadsheetDatabaseMapper implements IODatabaseMapper
             }
 
             $workSheet = $sheet->setActiveSheetIndex($key);
-            $rows      = $results === null ? 0 : \count($results);
+            $rows      = \count($results);
 
             if ($rows < 1) {
                 break;
@@ -215,17 +215,19 @@ class SpreadsheetDatabaseMapper implements IODatabaseMapper
                 continue;
             }
 
+            $idCol = (string) \array_shift($titles);
+
             // update data
             $line = 2;
             while (!empty($workSheet->getCell('A' . $line)->getCalculatedValue())) {
                 $query = new Builder($this->con);
-                $query->update($table)->into($table);
+                $query->update($titles)->into($table);
 
                 for ($j = 2; $j <= $columns; ++$j) {
-                    $query->sets($titles[$j - 1], $workSheet->getCell(StringUtils::intToAlphabet($j) . $line)->getCalculatedValue());
+                    $query->sets((string) $titles[$j - 2], $workSheet->getCell(StringUtils::intToAlphabet($j) . $line)->getCalculatedValue());
                 }
 
-                $query->where((string) $titles[0], '=', $workSheet->getCell('A' . $line)->getCalculatedValue());
+                $query->where($idCol, '=', $workSheet->getCell('A' . $line)->getCalculatedValue());
                 $query->execute();
 
                 ++$line;