diff --git a/core/lib/Drupal/Core/Database/Connection.php b/core/lib/Drupal/Core/Database/Connection.php
index ce7e04f..ca9771c 100644
--- a/core/lib/Drupal/Core/Database/Connection.php
+++ b/core/lib/Drupal/Core/Database/Connection.php
@@ -874,7 +874,7 @@ public function transactionDepth() {
   }
 
   /**
-   * Returns a new DatabaseTransaction object on this connection.
+   * Returns a new Transaction object on this connection.
    *
    * @param $name
    *   Optional name of the savepoint.
diff --git a/core/lib/Drupal/Core/Database/Database.php b/core/lib/Drupal/Core/Database/Database.php
index d6c28ca..12ce953 100644
--- a/core/lib/Drupal/Core/Database/Database.php
+++ b/core/lib/Drupal/Core/Database/Database.php
@@ -75,7 +75,7 @@
    * logging keys.
    *
    * array(
-   *   '$db_key' => DatabaseLog object.
+   *   '$db_key' => Log object.
    * );
    *
    * @var array
diff --git a/core/lib/Drupal/Core/Database/Driver/sqlite/Select.php b/core/lib/Drupal/Core/Database/Driver/sqlite/Select.php
index 5403611..105af86 100644
--- a/core/lib/Drupal/Core/Database/Driver/sqlite/Select.php
+++ b/core/lib/Drupal/Core/Database/Driver/sqlite/Select.php
@@ -14,4 +14,4 @@ public function forUpdate($set = TRUE) {
     // SQLite does not support FOR UPDATE so nothing to do.
     return $this;
   }
-}
\ No newline at end of file
+}
diff --git a/core/lib/Drupal/Core/Database/Query/Insert.php b/core/lib/Drupal/Core/Database/Query/Insert.php
index 72cadb8..0ae6b7e 100644
--- a/core/lib/Drupal/Core/Database/Query/Insert.php
+++ b/core/lib/Drupal/Core/Database/Query/Insert.php
@@ -53,7 +53,7 @@ class Insert extends Query {
   protected $insertValues = array();
 
   /**
-   * A SelectQuery object to fetch the rows that should be inserted.
+   * A SelectInterface object to fetch the rows that should be inserted.
    *
    * @var SelectQueryInterface
    */
@@ -168,7 +168,7 @@ public function useDefaults(array $fields) {
   }
 
   /**
-   * Sets the fromQuery on this InsertQuery object.
+   * Sets the fromQuery on this Insert object.
    *
    * @param SelectQueryInterface $query
    *   The query to fetch the rows that should be inserted.