diff --git a/include/paimon/catalog/catalog.h b/include/paimon/catalog/catalog.h
index c7801fcb..058acd89 100644
--- a/include/paimon/catalog/catalog.h
+++ b/include/paimon/catalog/catalog.h
@@ -100,7 +100,7 @@ class PAIMON_EXPORT Catalog {
     /// @param db_name The name of the database to check for existence.
     /// @return A result containing true if the database exists, false otherwise, or an error
     /// status.
-    virtual Result<bool> DataBaseExists(const std::string& db_name) const = 0;
+    virtual Result<bool> DatabaseExists(const std::string& db_name) const = 0;
 
     /// Checks whether a table with the specified identifier exists in the catalog.
     ///
diff --git a/src/paimon/core/catalog/file_system_catalog.cpp b/src/paimon/core/catalog/file_system_catalog.cpp
index a8bef047..fa3fc33a 100644
--- a/src/paimon/core/catalog/file_system_catalog.cpp
+++ b/src/paimon/core/catalog/file_system_catalog.cpp
@@ -49,7 +49,7 @@ Status FileSystemCatalog::CreateDatabase(const std::string& db_name,
         return Status::Invalid(
             fmt::format("Cannot create database for system database {}.", db_name));
     }
-    PAIMON_ASSIGN_OR_RAISE(bool exist, DataBaseExists(db_name));
+    PAIMON_ASSIGN_OR_RAISE(bool exist, DatabaseExists(db_name));
     if (exist) {
         if (ignore_if_exists) {
             return Status::OK();
@@ -78,10 +78,10 @@ Status FileSystemCatalog::CreateDatabaseImpl(const std::string& db_name,
     return Status::OK();
 }
 
-Result<bool> FileSystemCatalog::DataBaseExists(const std::string& db_name) const {
+Result<bool> FileSystemCatalog::DatabaseExists(const std::string& db_name) const {
     if (IsSystemDatabase(db_name)) {
         return Status::NotImplemented(
-            "do not support checking DataBaseExists for system database.");
+            "do not support checking DatabaseExists for system database.");
     }
     return fs_->Exists(NewDatabasePath(warehouse_, db_name));
 }
@@ -102,7 +102,7 @@ Status FileSystemCatalog::CreateTable(const Identifier& identifier, ArrowSchema*
             fmt::format("Cannot create table for system table {}, please use data table.",
                         identifier.ToString()));
     }
-    PAIMON_ASSIGN_OR_RAISE(bool db_exist, DataBaseExists(identifier.GetDatabaseName()));
+    PAIMON_ASSIGN_OR_RAISE(bool db_exist, DatabaseExists(identifier.GetDatabaseName()));
     if (!db_exist) {
         return Status::Invalid(
             fmt::format("database {} is not exist", identifier.GetDatabaseName()));
diff --git a/src/paimon/core/catalog/file_system_catalog.h b/src/paimon/core/catalog/file_system_catalog.h
index 04d09d00..63e63272 100644
--- a/src/paimon/core/catalog/file_system_catalog.h
+++ b/src/paimon/core/catalog/file_system_catalog.h
@@ -48,8 +48,8 @@ class FileSystemCatalog : public Catalog {
                        bool ignore_if_exists) override;
 
     Result<std::vector<std::string>> ListDatabases() const override;
-    Result<std::vector<std::string>> ListTables(const std::string& database_names) const override;
-    Result<bool> DataBaseExists(const std::string& db_name) const override;
+    Result<std::vector<std::string>> ListTables(const std::string& db_name) const override;
+    Result<bool> DatabaseExists(const std::string& db_name) const override;
     Result<bool> TableExists(const Identifier& identifier) const override;
     Result<std::shared_ptr<Schema>> LoadTableSchema(const Identifier& identifier) const override;
 
diff --git a/src/paimon/core/catalog/file_system_catalog_test.cpp b/src/paimon/core/catalog/file_system_catalog_test.cpp
index 14467cf5..ede3b2bd 100644
--- a/src/paimon/core/catalog/file_system_catalog_test.cpp
+++ b/src/paimon/core/catalog/file_system_catalog_test.cpp
@@ -32,7 +32,7 @@
 
 namespace paimon::test {
 
-TEST(FileSystemCatalogTest, TestDataBaseExists) {
+TEST(FileSystemCatalogTest, TestDatabaseExists) {
     std::map<std::string, std::string> options;
     options[Options::FILE_SYSTEM] = "local";
     options[Options::FILE_FORMAT] = "orc";
@@ -41,14 +41,14 @@ TEST(FileSystemCatalogTest, TestDataBaseExists) {
     ASSERT_TRUE(dir);
     FileSystemCatalog catalog(core_options.GetFileSystem(), dir->Str());
 
-    ASSERT_OK_AND_ASSIGN(auto exist, catalog.DataBaseExists("db1"));
+    ASSERT_OK_AND_ASSIGN(auto exist, catalog.DatabaseExists("db1"));
     ASSERT_FALSE(exist);
 
     ASSERT_OK(catalog.CreateDatabase("db1", options, /*ignore_if_exists=*/false));
     ASSERT_NOK(catalog.CreateDatabase("db1", options, /*ignore_if_exists=*/false));
     ASSERT_OK(catalog.CreateDatabase("db1", options, /*ignore_if_exists=*/true));
 
-    ASSERT_OK_AND_ASSIGN(exist, catalog.DataBaseExists("db1"));
+    ASSERT_OK_AND_ASSIGN(exist, catalog.DatabaseExists("db1"));
     ASSERT_TRUE(exist);
     ASSERT_OK_AND_ASSIGN(std::vector<std::string> db_names, catalog.ListDatabases());
     ASSERT_EQ(1, db_names.size());