diff --git a/json_array.go b/json_array.go
index 41a649a..6abb337 100644
--- a/json_array.go
+++ b/json_array.go
@@ -36,9 +36,9 @@ func (f JSONArray[T]) String() string {
 func (f *JSONArray[T]) SetValue(value any) error {
 	switch vl := value.(type) {
 	case []T:
-		*f = vl
+		*f = append(*f, vl...)
 	case *[]T:
-		*f = *vl
+		*f = append(*f, *vl...)
 	case nil:
 		return ErrNullValueNotAllowed
 	default:
@@ -101,7 +101,7 @@ func (f *JSONArray[T]) UnmarshalJSON(b []byte) error {
 	if err := json.Unmarshal(b, &res); err != nil {
 		return err
 	}
-	*f = (*f)[:0]
+	*f = append((*f)[:0], res...)
 	return nil
 }
 
diff --git a/nullable_json_arrray.go b/nullable_json_arrray.go
index 8db8d60..115c2ce 100644
--- a/nullable_json_arrray.go
+++ b/nullable_json_arrray.go
@@ -1,6 +1,8 @@
 package gosql
 
-import "database/sql/driver"
+import (
+	"database/sql/driver"
+)
 
 // NullableJSONArray object
 type NullableJSONArray[T any] JSONArray[T]
@@ -43,7 +45,7 @@ func (f NullableJSONArray[T]) Value() (driver.Value, error) {
 }
 
 // Scan value from database
-func (f *NullableJSONArray[T]) Scan(value interface{}) error {
+func (f *NullableJSONArray[T]) Scan(value any) error {
 	if value == nil {
 		*f = nil
 		return nil
diff --git a/nullable_json_arrray_test.go b/nullable_json_arrray_test.go
index e799fb8..7f2284e 100644
--- a/nullable_json_arrray_test.go
+++ b/nullable_json_arrray_test.go
@@ -56,4 +56,11 @@ func TestNullableJSONArray(t *testing.T) {
 		v, _ := js.Value()
 		assert.Nil(t, v)
 	})
+
+	t.Run("scan", func(t *testing.T) {
+		var js NullableJSONArray[int]
+		if assert.NoError(t, js.Scan([]byte("[1,2,3]"))) {
+			assert.ElementsMatch(t, []int{1, 2, 3}, js)
+		}
+	})
 }