diff --git a/src/Connection.php b/src/Connection.php
index 2549f04132f..08e36e5b1fb 100644
--- a/src/Connection.php
+++ b/src/Connection.php
@@ -378,7 +378,7 @@ private function addCriteriaCondition(
      * @param array<string, mixed>                                                           $criteria
      * @param array<int, string|ParameterType|Type>|array<string, string|ParameterType|Type> $types
      *
-     * @return int|string The number of affected rows.
+     * @return int|numeric-string The number of affected rows.
      *
      * @throws Exception
      */
@@ -445,7 +445,7 @@ public function getTransactionIsolation(): TransactionIsolationLevel
      * @param array<string, mixed>                                                           $criteria
      * @param array<int, string|ParameterType|Type>|array<string, string|ParameterType|Type> $types
      *
-     * @return int|string The number of affected rows.
+     * @return int|numeric-string The number of affected rows.
      *
      * @throws Exception
      */
@@ -482,7 +482,7 @@ public function update(string $table, array $data, array $criteria = [], array $
      * @param array<string, mixed>                                                           $data
      * @param array<int, string|ParameterType|Type>|array<string, string|ParameterType|Type> $types
      *
-     * @return int|string The number of affected rows.
+     * @return int|numeric-string The number of affected rows.
      *
      * @throws Exception
      */
@@ -839,6 +839,8 @@ public function executeCacheQuery(string $sql, array $params, array $types, Quer
      * @param list<mixed>|array<string, mixed> $params
      * @psalm-param WrapperParameterTypeArray $types
      *
+     * @return int|numeric-string
+     *
      * @throws Exception
      */
     public function executeStatement(string $sql, array $params = [], array $types = []): int|string
@@ -878,7 +880,7 @@ public function getTransactionNestingLevel(): int
      *
      * If the underlying driver does not support identity columns, an exception is thrown.
      *
-     * @return int|string The last insert ID, as an integer or a numeric string.
+     * @return int|numeric-string The last insert ID, as an integer or a numeric string.
      *
      * @throws Exception
      */
@@ -1371,6 +1373,8 @@ private function handleDriverException(
      * @param array<int, mixed>|array<string, mixed> $params
      * @psalm-param WrapperParameterTypeArray $types
      *
+     * @return int|numeric-string
+     *
      * @throws Exception
      */
     public function executeUpdate(string $sql, array $params = [], array $types = []): int|string
@@ -1392,6 +1396,8 @@ public function query(string $sql): Result
      * BC layer for a wide-spread use-case of old DBAL APIs
      *
      * @deprecated This API is deprecated and will be removed after 2022
+     *
+     * @return int|numeric-string
      */
     public function exec(string $sql): int|string
     {
diff --git a/src/Driver/Connection.php b/src/Driver/Connection.php
index f5229a2d298..b6411a060d3 100644
--- a/src/Driver/Connection.php
+++ b/src/Driver/Connection.php
@@ -39,6 +39,8 @@ public function quote(string $value): string;
      * If the number of affected rows is greater than the maximum int value (PHP_INT_MAX),
      * the number of affected rows may be returned as a string.
      *
+     * @return int|numeric-string
+     *
      * @throws Exception
      */
     public function exec(string $sql): int|string;
diff --git a/src/Driver/Result.php b/src/Driver/Result.php
index 64fe253e4b3..500cb88701b 100644
--- a/src/Driver/Result.php
+++ b/src/Driver/Result.php
@@ -70,6 +70,8 @@ public function fetchFirstColumn(): array;
      *
      * If the number of rows exceeds {@see PHP_INT_MAX}, it might be returned as string if the driver supports it.
      *
+     * @return int|numeric-string
+     *
      * @throws Exception
      */
     public function rowCount(): int|string;
diff --git a/src/Query/QueryBuilder.php b/src/Query/QueryBuilder.php
index 8b15ad7f1c1..2e7fac483b5 100644
--- a/src/Query/QueryBuilder.php
+++ b/src/Query/QueryBuilder.php
@@ -303,7 +303,7 @@ public function executeQuery(): Result
      *
      * Should be used for INSERT, UPDATE and DELETE
      *
-     * @return int|string The number of affected rows.
+     * @return int|numeric-string The number of affected rows.
      *
      * @throws Exception
      */
diff --git a/src/Result.php b/src/Result.php
index b15babfade7..d532531f586 100644
--- a/src/Result.php
+++ b/src/Result.php
@@ -225,6 +225,8 @@ public function iterateColumn(): Traversable
      *
      * If the number of rows exceeds {@see PHP_INT_MAX}, it might be returned as string if the driver supports it.
      *
+     * @return int|numeric-string
+     *
      * @throws Exception
      */
     public function rowCount(): int|string
diff --git a/src/Statement.php b/src/Statement.php
index 78997097d50..9b4a3b43bca 100644
--- a/src/Statement.php
+++ b/src/Statement.php
@@ -124,6 +124,8 @@ public function executeQuery(): Result
      *
      * If the number of rows exceeds {@see PHP_INT_MAX}, it might be returned as string if the driver supports it.
      *
+     * @return int|numeric-string
+     *
      * @throws Exception
      */
     public function executeStatement(): int|string