diff --git a/src/Sql/Operators/MiscOperators/SqlIfNullOperator.php b/src/Sql/Operators/MiscOperators/SqlIfNullOperator.php
new file mode 100644
index 00000000..b2fbe9ef
--- /dev/null
+++ b/src/Sql/Operators/MiscOperators/SqlIfNullOperator.php
@@ -0,0 +1,17 @@
+<?php
+class SqlIfNullOperator extends SqlOperator
+{
+	protected $subject;
+	protected $target;
+
+	public function __construct($subject, $target)
+	{
+		$this->subject = $this->attachExpression($subject);
+		$this->target = $this->attachExpression($target);
+	}
+
+	public function getAsString()
+	{
+		return 'IFNULL (' . $this->subject->getAsString() . ', ' . $this->target->getAsString() . ')';
+	}
+}
diff --git a/src/Sql/Operators/UnaryOperators/SqlMaxOperator.php b/src/Sql/Operators/UnaryOperators/SqlMaxOperator.php
new file mode 100644
index 00000000..0b9a12b3
--- /dev/null
+++ b/src/Sql/Operators/UnaryOperators/SqlMaxOperator.php
@@ -0,0 +1,8 @@
+<?php
+class SqlMaxOperator extends SqlUnaryOperator
+{
+	public function getAsStringNonEmpty()
+	{
+		return 'MAX (' . $this->subject->getAsString() . ')';
+	}
+}