diff --git a/src/ZM/MySQL/MySQLWrapper.php b/src/ZM/MySQL/MySQLWrapper.php
index 23aa720b..61074261 100644
--- a/src/ZM/MySQL/MySQLWrapper.php
+++ b/src/ZM/MySQL/MySQLWrapper.php
@@ -13,6 +13,7 @@ use Doctrine\DBAL\Cache\QueryCacheProfile;
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\DriverManager;
 use Doctrine\DBAL\ParameterType;
+use Doctrine\DBAL\Types\Type;
 use Throwable;
 use Traversable;
 use ZM\Exception\DbException;
@@ -113,10 +114,10 @@ class MySQLWrapper
     }
 
     /**
-     * @param  mixed       $table
+     * @param  string      $table 表
      * @throws DbException
      */
-    public function delete($table, array $criteria, array $types = []): int
+    public function delete(string $table, array $criteria, array $types = []): int
     {
         try {
             return $this->connection->delete($table, $criteria, $types);
@@ -127,9 +128,9 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param mixed $level
+     * @param int $level Sets the transaction isolation level
      */
-    public function setTransactionIsolation($level): int
+    public function setTransactionIsolation(int $level): int
     {
         return $this->connection->setTransactionIsolation($level);
     }
@@ -144,10 +145,10 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $table
+     * @param  string      $table 表名
      * @throws DbException
      */
-    public function update($table, array $data, array $criteria, array $types = []): int
+    public function update(string $table, array $data, array $criteria, array $types = []): int
     {
         try {
             return $this->connection->update($table, $data, $criteria, $types);
@@ -158,10 +159,10 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $table
+     * @param  string      $table 表名
      * @throws DbException
      */
-    public function insert($table, array $data, array $types = []): int
+    public function insert(string $table, array $data, array $types = []): int
     {
         try {
             return $this->connection->insert($table, $data, $types);
@@ -172,18 +173,17 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param mixed $str
+     * @param string $str The name to be quoted
      */
-    public function quoteIdentifier($str): string
+    public function quoteIdentifier(string $str): string
     {
         return $this->connection->quoteIdentifier($str);
     }
 
     /**
      * wrapper method
-     * @param  mixed $value
-     * @param  int   $type
-     * @return mixed
+     * @param mixed                $value
+     * @param null|int|string|Type $type
      */
     public function quote($value, $type = ParameterType::STRING)
     {
@@ -192,7 +192,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                                               $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
+     * @return array<int,array<int,mixed>>
      */
     public function fetchAllNumeric(string $query, array $params = [], array $types = []): array
     {
@@ -205,7 +210,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                                               $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
+     * @return array<int,array<string,mixed>>
      */
     public function fetchAllAssociative(string $query, array $params = [], array $types = []): array
     {
@@ -218,6 +228,10 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                           $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>           $params Query parameters
+     * @param array<int, int|string>|array<string, int|string> $types  Parameter types
+     *
      * @throws DbException
      */
     public function fetchAllKeyValue(string $query, array $params = [], array $types = []): array
@@ -231,7 +245,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                           $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>           $params Query parameters
+     * @param array<int, int|string>|array<string, int|string> $types  Parameter types
+     *
      * @throws DbException
+     * @return array<mixed,array<string,mixed>>
      */
     public function fetchAllAssociativeIndexed(string $query, array $params = [], array $types = []): array
     {
@@ -244,7 +263,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                                               $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
+     * @return array<int,mixed>
      */
     public function fetchFirstColumn(string $query, array $params = [], array $types = []): array
     {
@@ -257,7 +281,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                                               $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
+     * @return Traversable<int,array<int,mixed>>
      */
     public function iterateNumeric(string $query, array $params = [], array $types = []): Traversable
     {
@@ -270,7 +299,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                                               $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
+     * @return Traversable<int,array<string,mixed>>
      */
     public function iterateAssociative(string $query, array $params = [], array $types = []): Traversable
     {
@@ -283,7 +317,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                           $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>           $params Query parameters
+     * @param array<int, int|string>|array<string, int|string> $types  Parameter types
+     *
      * @throws DbException
+     * @return Traversable<mixed,mixed>
      */
     public function iterateKeyValue(string $query, array $params = [], array $types = []): Traversable
     {
@@ -296,7 +335,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                           $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>           $params Query parameters
+     * @param array<int, int|string>|array<string, int|string> $types  Parameter types
+     *
      * @throws DbException
+     * @return Traversable<mixed,array<string,mixed>>
      */
     public function iterateAssociativeIndexed(string $query, array $params = [], array $types = []): Traversable
     {
@@ -309,7 +353,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
+     * @param string                                                               $query  SQL query
+     * @param array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
+     * @return Traversable<int,mixed>
      */
     public function iterateColumn(string $query, array $params = [], array $types = []): Traversable
     {
@@ -322,11 +371,13 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $sql
-     * @param  array       $types
+     * @param string                                                               $sql    SQL query
+     * @param array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
      */
-    public function executeQuery($sql, array $params = [], $types = [], ?QueryCacheProfile $qcp = null): MySQLStatementWrapper
+    public function executeQuery(string $sql, array $params = [], array $types = [], ?QueryCacheProfile $qcp = null): MySQLStatementWrapper
     {
         try {
             $query = $this->connection->executeQuery($sql, $params, $types, $qcp);
@@ -338,12 +389,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $sql
-     * @param  mixed       $params
-     * @param  mixed       $types
+     * @param  string                                                               $sql    SQL query
+     * @param  array<int, mixed>|array<string, mixed>                               $params Query parameters
+     * @param  array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
      * @throws DbException
      */
-    public function executeCacheQuery($sql, $params, $types, QueryCacheProfile $qcp): MySQLStatementWrapper
+    public function executeCacheQuery(string $sql, array $params, array $types, QueryCacheProfile $qcp): MySQLStatementWrapper
     {
         try {
             $query = $this->connection->executeCacheQuery($sql, $params, $types, $qcp);
@@ -355,10 +406,14 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $sql
+     * @param string                                                               $sql    SQL statement
+     * @param array<int, mixed>|array<string, mixed>                               $params Statement parameters
+     * @param array<int, null|int|string|Type>|array<string, null|int|string|Type> $types  Parameter types
+     *
      * @throws DbException
+     * @return int|string  the number of affected rows
      */
-    public function executeStatement($sql, array $params = [], array $types = []): int
+    public function executeStatement(string $sql, array $params = [], array $types = [])
     {
         try {
             return $this->connection->executeStatement($sql, $params, $types);
@@ -377,9 +432,10 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param null $name
+     * @param  null|string      $name name of the sequence object from which the ID should be returned
+     * @return false|int|string a string representation of the last inserted ID
      */
-    public function lastInsertId($name = null): string
+    public function lastInsertId(?string $name = null)
     {
         return $this->connection->lastInsertId($name);
     }
@@ -404,13 +460,12 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $nestTransactionsWithSavepoints
      * @throws DbException
      */
-    public function setNestTransactionsWithSavepoints($nestTransactionsWithSavepoints)
+    public function setNestTransactionsWithSavepoints(bool $nest_transactions_with_savepoints)
     {
         try {
-            $this->connection->setNestTransactionsWithSavepoints($nestTransactionsWithSavepoints);
+            $this->connection->setNestTransactionsWithSavepoints($nest_transactions_with_savepoints);
         } catch (Throwable $e) {
             throw new DbException($e->getMessage(), $e->getCode(), $e);
         }
@@ -460,10 +515,10 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $savepoint
+     * @param  string      $savepoint the name of the savepoint to create
      * @throws DbException
      */
-    public function createSavepoint($savepoint)
+    public function createSavepoint(string $savepoint)
     {
         try {
             $this->connection->createSavepoint($savepoint);
@@ -474,10 +529,10 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $savepoint
+     * @param  string      $savepoint the name of the savepoint to release
      * @throws DbException
      */
-    public function releaseSavepoint($savepoint)
+    public function releaseSavepoint(string $savepoint)
     {
         try {
             $this->connection->releaseSavepoint($savepoint);
@@ -488,10 +543,10 @@ class MySQLWrapper
 
     /**
      * wrapper method
-     * @param  mixed       $savepoint
+     * @param  string      $savepoint the name of the savepoint to rollback to
      * @throws DbException
      */
-    public function rollbackSavepoint($savepoint)
+    public function rollbackSavepoint(string $savepoint)
     {
         try {
             $this->connection->rollbackSavepoint($savepoint);