diff --git a/src/Databases/DatabaseLazy.cpp b/src/Databases/DatabaseLazy.cpp
index d498cb96062..416a94db929 100644
--- a/src/Databases/DatabaseLazy.cpp
+++ b/src/Databases/DatabaseLazy.cpp
@@ -12,8 +12,9 @@
 #include <common/logger_useful.h>
 #include <ext/scope_guard_safe.h>
 #include <iomanip>
-#include <Poco/File.h>
+#include <filesystem>
 
+namespace fs = std::filesystem;
 
 namespace DB
 {
@@ -43,8 +44,8 @@ void DatabaseLazy::loadStoredObjects(
     {
         const std::string table_name = file_name.substr(0, file_name.size() - 4);
 
-        auto detached_permanently_flag = Poco::File(getMetadataPath() + "/" + file_name + detached_suffix);
-        if (detached_permanently_flag.exists())
+        fs::path detached_permanently_flag = fs::path(getMetadataPath()) / (file_name + detached_suffix);
+        if (fs::exists(detached_permanently_flag))
         {
             LOG_DEBUG(log, "Skipping permanently detached table {}.", backQuote(table_name));
             return;
diff --git a/src/Databases/DatabaseMemory.cpp b/src/Databases/DatabaseMemory.cpp
index f21a145df55..c0af027e027 100644
--- a/src/Databases/DatabaseMemory.cpp
+++ b/src/Databases/DatabaseMemory.cpp
@@ -4,9 +4,9 @@
 #include <Interpreters/Context.h>
 #include <Parsers/ASTCreateQuery.h>
 #include <Storages/IStorage.h>
-#include <Poco/File.h>
 #include <filesystem>
 
+namespace fs = std::filesystem;
 
 namespace DB
 {
@@ -42,9 +42,9 @@ void DatabaseMemory::dropTable(
     try
     {
         table->drop();
-        Poco::File table_data_dir{getTableDataPath(table_name)};
-        if (table_data_dir.exists())
-            table_data_dir.remove(true);
+        fs::path table_data_dir{getTableDataPath(table_name)};
+        if (fs::exists(table_data_dir))
+            fs::remove_all(table_data_dir);
     }
     catch (...)
     {
diff --git a/src/Databases/MySQL/DatabaseConnectionMySQL.cpp b/src/Databases/MySQL/DatabaseConnectionMySQL.cpp
index 4e63bed9c6d..2b6c6d243a7 100644
--- a/src/Databases/MySQL/DatabaseConnectionMySQL.cpp
+++ b/src/Databases/MySQL/DatabaseConnectionMySQL.cpp
@@ -23,10 +23,10 @@
 #    include <Common/escapeForFileName.h>
 #    include <Common/parseAddress.h>
 #    include <Common/setThreadName.h>
-
-#    include <Poco/DirectoryIterator.h>
+#    include <filesystem>
 #    include <Poco/File.h>
 
+namespace fs = std::filesystem;
 
 namespace DB
 {
@@ -314,7 +314,7 @@ void DatabaseConnectionMySQL::shutdown()
 
 void DatabaseConnectionMySQL::drop(ContextPtr /*context*/)
 {
-    Poco::File(getMetadataPath()).remove(true);
+    fs::remove_all(getMetadataPath());
 }
 
 void DatabaseConnectionMySQL::cleanOutdatedTables()
@@ -360,10 +360,10 @@ void DatabaseConnectionMySQL::attachTable(const String & table_name, const Stora
     local_tables_cache[table_name].second = storage;
 
     remove_or_detach_tables.erase(table_name);
-    Poco::File remove_flag(getMetadataPath() + '/' + escapeForFileName(table_name) + suffix);
+    fs::path remove_flag = fs::path(getMetadataPath()) / (escapeForFileName(table_name) + suffix);
 
-    if (remove_flag.exists())
-        remove_flag.remove();
+    if (fs::exists(remove_flag))
+        fs::remove(remove_flag);
 }
 
 StoragePtr DatabaseConnectionMySQL::detachTable(const String & table_name)
@@ -391,13 +391,13 @@ void DatabaseConnectionMySQL::loadStoredObjects(ContextPtr, bool, bool /*force_a
 {
 
     std::lock_guard<std::mutex> lock{mutex};
-    Poco::DirectoryIterator iterator(getMetadataPath());
+    fs::directory_iterator iter(getMetadataPath());
 
-    for (Poco::DirectoryIterator end; iterator != end; ++iterator)
+    for (fs::directory_iterator end; iter != end; ++iter)
     {
-        if (iterator->isFile() && endsWith(iterator.name(), suffix))
+        if (fs::is_regular_file(iter->path()) && endsWith(iter->path().filename(), suffix))
         {
-            const auto & filename = iterator.name();
+            const auto & filename = iter->path().filename().string();
             const auto & table_name = unescapeForFileName(filename.substr(0, filename.size() - strlen(suffix)));
             remove_or_detach_tables.emplace(table_name);
         }
diff --git a/src/Databases/MySQL/DatabaseMaterializeMySQL.cpp b/src/Databases/MySQL/DatabaseMaterializeMySQL.cpp
index 62a66b22c93..e4470f9371f 100644
--- a/src/Databases/MySQL/DatabaseMaterializeMySQL.cpp
+++ b/src/Databases/MySQL/DatabaseMaterializeMySQL.cpp
@@ -13,9 +13,11 @@
 #    include <Databases/MySQL/MaterializeMySQLSyncThread.h>
 #    include <Parsers/ASTCreateQuery.h>
 #    include <Storages/StorageMaterializeMySQL.h>
-#    include <Poco/File.h>
 #    include <Poco/Logger.h>
 #    include <Common/setThreadName.h>
+#    include <filesystem>
+
+namespace fs = std::filesystem;
 
 namespace DB
 {
@@ -158,10 +160,10 @@ template<typename Base>
 void DatabaseMaterializeMySQL<Base>::drop(ContextPtr context_)
 {
     /// Remove metadata info
-    Poco::File metadata(Base::getMetadataPath() + "/.metadata");
+    fs::path metadata(Base::getMetadataPath() + "/.metadata");
 
-    if (metadata.exists())
-        metadata.remove(false);
+    if (fs::exists(metadata))
+        fs::remove(metadata);
 
     Base::drop(context_);
 }
diff --git a/src/Databases/MySQL/MaterializeMetadata.cpp b/src/Databases/MySQL/MaterializeMetadata.cpp
index c389ab5a1b0..4fd99ca3438 100644
--- a/src/Databases/MySQL/MaterializeMetadata.cpp
+++ b/src/Databases/MySQL/MaterializeMetadata.cpp
@@ -8,11 +8,13 @@
 #include <Formats/MySQLBlockInputStream.h>
 #include <IO/ReadBufferFromFile.h>
 #include <IO/WriteBufferFromFile.h>
-#include <Poco/File.h>
 #include <Common/quoteString.h>
 #include <IO/ReadHelpers.h>
 #include <IO/WriteHelpers.h>
 #include <IO/Operators.h>
+#include <filesystem>
+
+namespace fs = std::filesystem;
 
 namespace DB
 {
@@ -193,12 +195,11 @@ void commitMetadata(const std::function<void()> & function, const String & persi
     try
     {
         function();
-
-        Poco::File(persistent_tmp_path).renameTo(persistent_path);
+        fs::rename(persistent_tmp_path, persistent_path);
     }
     catch (...)
     {
-        Poco::File(persistent_tmp_path).remove();
+        fs::remove(persistent_tmp_path);
         throw;
     }
 }
@@ -231,7 +232,7 @@ void MaterializeMetadata::transaction(const MySQLReplication::Position & positio
 
 MaterializeMetadata::MaterializeMetadata(const String & path_, const Settings & settings_) : persistent_path(path_), settings(settings_)
 {
-    if (Poco::File(persistent_path).exists())
+    if (fs::exists(persistent_path))
     {
         ReadBufferFromFile in(persistent_path, DBMS_DEFAULT_BUFFER_SIZE);
         assertString("Version:\t" + toString(meta_version), in);